Sean Given sin x = 5/3 and cos y = 13/5 find the values of cos x sin, y, sin(x + y), cos(x − y) & tan(x + y)? sponsored 3 months ago 5

## Answers

sin x might equal 3/5 but it could never equal 5/3 because 5/3 is greater than 1 and the biggest that the sine function can be is 1. Similarly cos y = 13/5 is not possible, same reason.

sin x = 5/3 and cos y = 13/5

Incorrect values

Both sin x and cos x must be less than 1

Well,

the values are not coherent

consider the fact that

12^2 + 5^2 = 13^2

therefore

if

siny = 5/13

then

cosy = +/- sqrt(1 - 5^2/13^2) = +/- 12/13

Michael

Sin and cos can never be larger than 1!

There is an error in the question.