how can i find value of sin 135 and all kind of this problems. How can i find values for every angles of every trignometry functions.

sin x = sin (π – x)

sin 135 = sin (180 – 135) = sin 45 = 1/sqroot(2)

We can also solve this by using the sin (90 + 45)

To find evry angles, we only need to see its combination either in summation form or product form of the angles we know like 30, 45, 60 and 90.

Good Luck!

Thanks & Regards

Jitender Singh

IIT Delhi

askIITians Faculty