Question

if sin3/5 then find the value of cos​

Answer 1

cos should be equal to 4/5

Answer 2

Answer:

cos =4/5

Step-by-step explanation:

we know that

sin^2a+cos^2a=1

(3/5)^2+cos^2a=1

cos^2a=1-9/25

cos^2a=16/25

cosa=4/5

hope you satisfied