Question

Q1. If [x] < 1, y > 0 and xy < 1, then show that
x+y
tan (sin
-1
2x
1+x2
+ cos-11-y2
1+y2
1-xy​

Answer 1

Answer:

sin cos tan are the trignometric ratios. to find sin opposite side divide by hypotenuse to find cos adjacent side divided by hypotenuse and to find tan opposite side divided by adjacent side

hope it will help you