Question

Show that (sin alpha +cosec alpha)²+ (cos alpha + sec alpha)²​

Answer 1

Answer:

let alpa =x

sin²x+1/sin²x+2sinx×1/sinx+ cos²x+1/cos²x+2cosx×1/cos

sin²x+1/sin²x+cos²x+1/cos²x+4

1+4+1/sin²x+1/cos²x

5+sin²x+cos²x/sin²x•cos²x

5+1/sin²xcos²x