(A) Evaluate : \frac{5}{\cot ^2 30^{\circ}}+\frac{1}{ \sin ^2 60^{\circ}}-\cot ^2 45^{\circ}+2 \sin ^2 90^{\circ} OR (B) If \theta is an acute angle and \sin \theta=\cos \theta, find the value of \tan ^2 \theta+\cot ^2 \theta-2

CBSE Class 10 Math 2023 Delhi Set-2 Solved Paper

SECTION - B

Section - B consists of Very Short Answer (VSA) type questions of 2 marks each.

Question : 7

Total: 11

(A) Evaluate : ‌

cot230∘

+‌

sin‌260∘

−cot245∘+2sin‌290∘
OR
(B) If θ is an acute angle and sin‌θ=cos‌θ, find the value of tan2θ+cot2θ−2

Solution: 👈: Video Solution

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