Question

Найти значение Sin²a+cos²a если а=0

Answer 1

Sin 0=0

Cos 0=1

0^2+1^2=1

Answer 2

$sin^2 \alpha + cos^2 \alpha$=1 при любых значениях угла, это тригонометрическое тождество

Answer 3

To find the value of sin²(a) + cos²(a) when a = 0, we simply substitute a = 0 into the expression and perform the calculations:

sin²(0) + cos²(0)

Remember that sin(0) = 0 and cos(0) = 1. Now, let's calculate:

sin²(0) + cos²(0) = 0² + 1² = 0 + 1 = 1

So, the value of sin²(a) + cos²(a) when a = 0 is 1.