Question

the value of
${sin}^{2} o$
+
${cos}^{2} o$
is
(a) -1
(b) 1
(c) 0
(d) 2​

Answer 1

Question-

The value of sin²0 + cos²0=

Options-

(a) -1

(b) 1

(c) 0

(d) 2​

Answer

(b) 1

Explanation-

You can solve this question using two methods-

METHOD 1

sin²0 + cos²0 = 0 + 1 = 1

METHOD 2

We can make use of the identity sin²x + cos²x = 0.

The required answer is 1