# Question No. 4

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Lesson#6

Question No. 4

Q4: Prove that:

(i): sin^2 (π+θ) tan(3π/2+θ)/(cot^2 (3π/2−θ) cos^2 (π−θ)cosec(2π−θ)=cosθ

(ii): (cos(90^°+θ) .sec(−θ).tan(180^°−θ))/(sec(360^°−θ) . sin(180^°+θ)cot(90^°−θ))=−1

Trigonometric Identities

Chapter No 10

Exercise No 10.1

Mathematics

part 1

Question No. 4

Q4: Prove that:

(i): sin^2 (π+θ) tan(3π/2+θ)/(cot^2 (3π/2−θ) cos^2 (π−θ)cosec(2π−θ)=cosθ

(ii): (cos(90^°+θ) .sec(−θ).tan(180^°−θ))/(sec(360^°−θ) . sin(180^°+θ)cot(90^°−θ))=−1

Trigonometric Identities

Chapter No 10

Exercise No 10.1

Mathematics

part 1

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