(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 - Question 7

SECTION - B

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

Question : 7 of 11

Marks: +1, -0

(A) Evaluate :

\;{5}/{\cot ^2 30^{∘}}+\;{1}/{ sin \;^2 60^{∘}}-\cot ^2 45^{∘}+2 sin \;^2 90^{∘}

OR
(B) If

θ

is an acute angle and

sin \;θ=\cos θ

, find the value of

\tan ^2 θ+\cot ^2 θ-2

Solution:

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