Question

A metal sheet in the shape of a sector is bent to make a cone. Then the length of Arc of the sector will be equal to:
Option 1 = area of base cone
Option 2 = Slant height of cone
Option 3 = Vertical Height
Option 4 = Perimeter of base Cone

Answer 1

Answer:

- if; cosθ+cotθ=2 ; where the θ of cos is equal to the θ of tan, and the θ of cot is eqaul to the θ of sec

Then prove that :- tan(sqaure)θ + sec(sqaure)θ = 2