Question 8If cot A = 43, check whether (1−tan2A)(1+tan2A)=cos2A−si

1.	Question 8If cot A = 43, check whether (1−tan2A)(1+tan2A)=cos2A−sin2A or not.
Answer» Question 8 If cot A = $\frac{4}{3}$ , check whether $\frac{(1 - t a n^{2} A)}{(1 + t a n^{2} A)} = c o s^{2} A - s i n^{2} A$ or not.

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