Question

If tan theta=20/21 then value of sin theta cos theta / cos square theta - sin square theta is?
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Answer 1

Answer:

$2y2 | < 2 |021. < .00.0 \frac{... \leqslant}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} | | \times \frac{?}{?} \times \frac{?}{?}$