Question

If tan0=
$\binom{8}{15}$
find cos0=?
​

Answer 1

Answer:

By pythagoras theorem

(Hypotenuse)²=(side1)²+(side2)²

(Hyp)²=(8)²+(15)²

(Hyp)²= 64+ 125

(Hyp)²= (289)2

(Hyp)²= 17 cm

sin0= opposite upon hypotenuse

=8/17

cos0=Adjacent upon hypotenuse =15/17