Question

1 - tanA
8. यदि 3 cot A =4, तो जाँच कीजिए कि -
- = cos-A- Sin-A है या नहीं।​

Answer 1

3 cot A = 4

Cot A = 4/3 =H/B

H = 4 , B = 3 ,then

${4}^{2} = {p}^{2} + {3}^{2}$

$16 - 9 = {p}^{2}$

${p} = \sqrt{7}$

Cos A = B/H

3/4

Sin A = P/H

√7 /4

Cos A - Sin A

$\frac{3}{4} - \frac{ \sqrt{7} }{4}$

$\frac{3 - \sqrt{7} }{4}$