Question

Tan theta 21/20 what the value of sin and cos

Answer 1

first u find sec theta by

$\sqrt{?} 1 + tan {?}^{2}$

then by inverse of sec thata which is cos theta then find sin theta

Answer 2

Tan = opposite/adjacent

= 21/20

Hypotenuse² = 21²+20²

= 441+400

= 841

Hypotenuse = √841

= 29

Sin = opposite/hypotenuse

= 21/29

Cos = adjacent/hypotenuse

= 20/29