Question

Evalute without using table
sec theta cos ec(90° -0) - tan theta cot(90°-0) + (sin² 35° + sin² 55°)/
tan 10° tan 20° tan 45º tan 70°tan 80​°

Answer 1

Answer:

Given that

Tan(cos inverse of x ) =

sin (cos inverse of 1/2)

i.e sin ( cos inverse of 1/2) =

sin (sin inverse of pie - 1/2)

= pie by 2

Therefore

Tan (cos inverse of x) = pie by 2

Cos inverse of x =

tan inverse of pie by 2

We know that tan inverse of pie by 2 =0

Therefore cos inverse of x =0

i.e, x=pie by 2

hey mate here is ur answer

hope it will help u