Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

EASY

AS and A Level

IMPORTANT

Earn 100

Without using a calculator, find the exact value of : $\tan 75 °$ .

Important Questions on Trigonometry

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

Without using a calculator, find the exact value of: $\cos 105 °$

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

Without using a calculator, find the exact value of : $\tan (- 15 °)$ .

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

Without using a calculator, find the exact value of : $\sin \frac{π}{12}$ .

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

Without using a calculator, find the exact value of $\sin \frac{7 π}{12}$ .

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

Without using a calculator, find the exact value of : $\cos \frac{19 π}{12}$ .

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 3

Without using a calculator, find the exact value of : $\cot \frac{7 π}{12}$

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 4

Given that

\cos x = \frac{4}{5}

and that

0 ° < x < 90 °

, without using a calculator find the exact value of

\cos (x - 60 °)

.

EASY

AS and A Level

IMPORTANT

Cambridge International AS & A Level Mathematics : Pure Mathematics 2 & 3 Course Book>Chapter 3 - Trigonometry>EXERCISE 3B>Q 5

Given that

\sin A = \frac{4}{5}

and

\sin B = \frac{5}{13}

, where

A

and

B

are acute, show that

\sin (A + B) = \frac{63}{65}

.