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CBSE Class 10 Math 2023 Delhi Set-3 Solved Paper

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SECTION - B
Section-B consists of Very Short Answer (VSA) type questions of 2 marks each.
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Question : 7 of 11
Marks: +1, -0
(A) Evaluate
2sec⁡2θ+3csc⁡2θ−2sin⁡  θcos⁡θ   if   θ=45∘  .   2\sec^2\theta+3\csc^2\theta-2\sin\;\theta\cos\theta\;\text{ if }\;\theta=45^{\circ}\;\text{. }\;
OR
(B) If sin⁡θ−cos⁡θ=0\sin\theta-\cos\theta=0, then find the value of sin⁡4θ+cos⁡4θ\sin^4\theta+\cos^4\theta.
Solution:     👈: Video Solution
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