Solve the value of sin²45°+cos²45°

1

Step-by-step explanation:

sin²x = (sinx)²

cos²x = (cosx)²

Step 1: Define

sin²45° + cos²45°

Step 2: Rewrite

(sin45°)² + (cos45°)²

Step 3: Evaluate

sin45° = √2/2

cos45° = √2/2

(√2/2)² + (√2/2)²

1/2 + 1/2

1

x = 11

Step-by-step explanation:

You are solving for x. Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x, by rooting both sides:

√(x²) = √(121)

x = √121

x = √(11 * 11)

Note that when you have two of the same number multiplied within the root, they are squared, which makes them into a whole number.

x = √11 * √11 = 11

x = 11 is your answer.

~