Question

if sinQ =12/13,then find the value of cosQ​

Answer 1

Answer:

if sinQ = 12/13

therefore, P=12, H=13.

By Pythagoras theorem

H^2=P^2+B^2

169 = 144 + B^2

=> B^2 = 169-144

=> B^2 = 25

=> B = √25

=> B = 5

now cosQ= B/H

cosQ=5/13