# NCERT Class 10 Mathematics Trigonometry Proof Questions CBSE Board Sample Problems (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 1.

Given

then prove that

Question 2.

Prove the following trigonometric identities:

a)

b)

c)

d)

e)

Question 3.

If A, B, C are interior angles of , show that

Question 4.

Prove the following identities, where the angles involved are acute angles for which the expressions are defined.

a)

b)

c)

Question 5.

If and , prove that

Question 6.

Prove the following identities:

(i)

(ii)

(iii)

Question 7.

If , then show that

Question 8.

If and , then show that

Question 9.

Prove that

Question 10.

Prove that