Question

sin^2(50°)+cos^2(130°)​

Answer 1

Given: The term sin^2(50°)+cos^2(130°)​

To find: Solve the given term.

Solution:

• Now we have given the term sin^2(50°) + cos^2(130°)​ .

• We know the basic formula of trigonometry:

                sin^2 x + cos^ x = 1

• But before that we also have a formula:

                sin (180 - x) = sin x

• So, applying this first, we get:

                sin^2(180° - 130°) + cos^2(130°)​

                sin^2(130°) + cos^2(130°)​  = 1

Answer:

                So the value of sin^2(50°) + cos^2(130°)​  is 1.

Answer 2

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