Calculate the value of the trigonometric expression — task. Maths CBSE Live product, Class 10.

If \(15 \tan^2 \theta + 4 \sec^2 \theta = 23\), then find the value of \((\sec \theta + \text{cosec} \theta)^2 - \sin^2 \theta\).

Ans:

\frac{i}{i}

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1. Calculate the value of the trigonometric expression