Solve 4sin(15)2cos(40)=2sin(10)

$$4 \sin ( 15 ) 2 \cos ( 40 ) =2 \sin ( 10 )$$

Verify

Solution Steps

Evaluate trigonometric functions in the problem

$$4 \cdot 0.25881904510252074 \cdot 2 \cdot 0.766044443118978 = 2 \cdot 0.17364817766693033$$

Cancel out 2 on both sides.

$$4\times 0.25881904510252074\times 0.766044443118978=0.17364817766693033$$

Multiply 4 and 0.25881904510252074 to get 1.03527618041008296.

$$1.03527618041008296\times 0.766044443118978=0.17364817766693033$$

Multiply 1.03527618041008296 and 0.766044443118978 to get 0.79306756509658460206982213041488.

$$0.79306756509658460206982213041488=0.17364817766693033$$

Compare 0.79306756509658460206982213041488 and 0.17364817766693033.

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