Question

if sec =22/7 then sin ​

Answer 1

hey it's your ans-..

$sec \: \: theta =\frac{22}{7}$

$sin \: \: theta = ?$

$cos \: \: theta = \frac{1}{sec \: theta}$

$cos \: \: theta = \frac{1}{22 \7}$

$i.e \: \: cos \: \: theta = \frac{7}{22}$

$By \: \: identity$

$sin^2 theta + cos^2theta = 1$

$sin^2 theta + (7/22 )^2 = 1$

$sin^2 theta + ( 49 / 484 ) = 1$

$sin^2 theta = 1 - ( 49 / 484 )$

$sin theta = √\frac{435}{484}$

$i.e \: sin theta = √ 435 / 22$

$hope \: \: \: helpful.. \: \:$

pls pls mark brainlist.....