Question

If x=sin²thita and y=cos²thita + 1 , then find the value of x+y.​

Answer 1

Answer:

x + y = 2

Step-by-step explanation:

Given that:

• x = sin²θ
• y = cos²θ + 1

To find:

Value of x + y = ?

Solution:

The question is asked about x + y. So add x and y.

x + y

= sin²θ + (cos²θ + 1)

Grouping Trigonometric ratios,

→ (sin²θ + cos²θ) + 1

We know that sin²θ + cos²θ = 1

= (1) + 1

= 2

∴ The value of (x + y) = 2