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“MA9959Sum59” — 2015/6/26 — 15:04 — page 1 — #1 QUEEN’S COLLEGE, CORK. HONOR EXAMINATION, JUNIOR CLASS, JUNE 1ST, 1859 1. Prove that x m × x n = x m+n for all values of the indices m and n, positive, negative, integral, and fractional. 2. Simplify ( x + x 2 - 1 x - x 2 - 1 - x - x 2 - 1 x + x 2 - 1 ) ÷ x 2 - 1 x 2 +1 . 3. Prove the rule for G C M. Find the G C M of 6x 4 - 25x 2 - 9 and 3x 3 -15x 2 -5. Also of x 3 +y 3 +z 3 -3xyz and x 2 +2xy +y 2 -z 2 . 4. Solve the equations (x + 5) 1 m =(x 2 + 40x + 16) 1 2m x 2 - x + b =(x 2 - x - b 2 ) 1 2 5. Solve the simultaneous equations— x + y + z =6 x 2 + xy +2y 2 = 74 x - 2y + x =0 and 3x - y +5z = 16 x 2 - xy +3y 2 = 69 6. Explain the genesis of equations of the higher orders from sim- ple equations. Construct a quadratic whose roots shall be 3 + 5 and 3 - 5; also a cubic whose roots shall be 0, 2, and 3. 7. Prove that in a geometric progression the product an any two terms equidistant from a given term is always the same. What is the corresponding theorem in arithmetical progression? 8. The first term of an arithmetical series is 2 1 2 , the last 55 1 2 , the number of terms = 100; find the sum of the series. 9. Extract the cube root of .7854 to three places of decimals. 10. Given two sides of a triangle amd the included angle, deduce formulæ for solving the triangle. 11. Prove the following formulæ of plane trigonometry, viz.:— tan(180 + A) = tan A cos(180 - A)= - cos A 1 + cos(A + B) cos(A - B) = cos 2 A + cos 2 B cot A = cot 2A ± p 1 + cot 2 2A 12. Shew a priori that a formula expressing A 2 in terms of sin A ought to have four values; while one expressing tan A 2 in terms of tan A ought to have two values. 13. Shew how to find the distance between two inaccessible points— 1st, when in the horizontal plane; 2ndly, when not in that plane. 14. If a circle roll within another of twice its diameter, any point in the circumference of the former will describe a straight line. 15. Explain Euclid’s doctrine of ratio and of proportion; shew that his definition of ratio is imperfect unless accompanied by his defini- tion of proportion. Does Euclid’s definition of proportion furnish a direct and immediate test for determining whether four magnitudes are proportional or not? GEORGE BOOLE, F.R.S., Professor of Mathematics. Boole’s Exam Scrapbook, folio 77

George Boole 200 | George Boole Bicentenary Celebrations - … · 2019. 1. 23. · GEORGE BOOLE, F.R.S., Professor of Mathematics. Boole’s Exam Scrapbook, folio 77. i i \MA9959Sum59"

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Page 1: George Boole 200 | George Boole Bicentenary Celebrations - … · 2019. 1. 23. · GEORGE BOOLE, F.R.S., Professor of Mathematics. Boole’s Exam Scrapbook, folio 77. i i \MA9959Sum59"

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QUEEN’S COLLEGE, CORK.HONOR EXAM I N AT I ON ,

JUNIOR CLASS, JUNE 1ST, 1859

1. Prove that xm×xn = xm+n for all values of the indices m andn, positive, negative, integral, and fractional.

2. Simplify

{x +√x2 − 1

x−√x2 − 1

− x−√x2 − 1

x +√x2 − 1

}÷ x2 − 1√

x2 + 1.

3. Prove the rule for G C M. Find the G C M of 6x4 − 25x2 − 9and 3x3−15x2−5. Also of x3+y3+z3−3xyz and x2+2xy+y2−z2.

4. Solve the equations (x + 5)1m = (x2 + 40x + 16)

12m

x2 − x + b = (x2 − x− b2)12

5. Solve the simultaneous equations—x + y + z = 6

x2 + xy + 2y2 = 74x− 2y + x = 0 and3x− y + 5z = 16

x2 − xy + 3y2 = 69

6. Explain the genesis of equations of the higher orders from sim-ple equations. Construct a quadratic whose roots shall be 3 +

√5

and 3−√

5; also a cubic whose roots shall be 0, 2, and 3.7. Prove that in a geometric progression the product an any two

terms equidistant from a given term is always the same. What isthe corresponding theorem in arithmetical progression?

8. The first term of an arithmetical series is 2 12 , the last 55 1

2 , thenumber of terms = 100; find the sum of the series.

9. Extract the cube root of .7854 to three places of decimals.10. Given two sides of a triangle amd the included angle, deduce

formulæ for solving the triangle.11. Prove the following formulæ of plane trigonometry, viz.:—

tan(180◦ + A) = tanAcos(180◦ −A) = − cosA

1 + cos(A + B) cos(A−B) = cos2 A + cos2 B

cotA = cot 2A±√

1 + cot2 2A

12. Shew a priori that a formula expressing A2 in terms of sinA

ought to have four values; while one expressing tan A2 in terms of

tanA ought to have two values.13. Shew how to find the distance between two inaccessible points—

1st, when in the horizontal plane; 2ndly, when not in that plane.14. If a circle roll within another of twice its diameter, any point

in the circumference of the former will describe a straight line.15. Explain Euclid’s doctrine of ratio and of proportion; shew that

his definition of ratio is imperfect unless accompanied by his defini-tion of proportion. Does Euclid’s definition of proportion furnish adirect and immediate test for determining whether four magnitudesare proportional or not?

GEORGE BOOLE, F.R.S.,Professor of Mathematics.

Boole’s Exam Scrapbook, folio 77

Page 2: George Boole 200 | George Boole Bicentenary Celebrations - … · 2019. 1. 23. · GEORGE BOOLE, F.R.S., Professor of Mathematics. Boole’s Exam Scrapbook, folio 77. i i \MA9959Sum59"

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Library Archives, UCC Library

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