Question

if sec0 + tan0=x then tan0 is​

Answer 1

Given secθ+tanθ=x⋯(1)

As we know that

sec2θ−tan2θ=1

⟹(secθ−tanθ)(secθ+tanθ)=1                   (∵a2−b2=(a+b)(a−b))

⟹secθ−tanθ=x1⋯(2)

(1)−(2)⟹2tanθ=x−x1=xx2−1⟹tanθ=2xx2−1

Answer 2

Step-by-step explanation:

A physical change is any change in matter that involves the substance going from one physical state to another. ... Water boiling is a physical change as water molecules vibrate faster, they enter the gas phase and become water vapor.