Solve 7sin^2(0+3cos^20)=4

$$7 \sin ^ { 2 } ( 0 + 3 \cos ^ { 2 } 0 ) = 4$$

Verify

Solution Steps

Evaluate trigonometric functions in the problem

$$7 \cdot 0.05233595624294383 ^ {2} = 4$$

Calculate 0.05233595624294383 to the power of 2 and get 0.0027390523158633312537246645350689.

$$7\times 0.0027390523158633312537246645350689=4$$

Multiply 7 and 0.0027390523158633312537246645350689 to get 0.0191733662110433187760726517454823.

$$0.0191733662110433187760726517454823=4$$

Compare 0.0191733662110433187760726517454823 and 4.

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