Question

If Sin θ = 20/29, then what is the value of Cos θ?

A) 29/21 B) 21/29 C) 21/20 D) 20/29

Answer 1

Step-by-step explanation:

$\huge \boxed{ \fcolorbox{green}{grey}{good \: evening}}$

here is ur answer mate

sin theta= 20/29

=> perpendicular/hypotenuse=20/29

=> by Pythagoras theorem,

base=√29²-20²

base=√441

base=21

cos theta = base/hypotenuse

cos theta = 21/29

thus , option (b) is correct

here's the solution mate

$\huge \boxed{ \fcolorbox{green}{purple}{thank you}}$

Answer 2

Step-by-step explanation:

sin²@+ cos²@=1

cos²@=1-sin²@

=1-(20/29)²

=1-400/841

=. = 441/841

so cos@=21/29

ans is option b 21/29