Solve sin35^circsin55^circ-cos35^circcos55^circ=0

$$\sin 35 ^ { \circ } \sin 55 ^ { \circ } - \cos 35 ^ { \circ } \cos 55 ^ { \circ } = 0$$

Verify

Solution Steps

Evaluate trigonometric functions in the problem

$$0.573576436351046 \cdot 0.8191520442889918 - 0.8191520442889918 \cdot 0.573576436351046 = 0$$

Multiply 0.573576436351046 and 0.8191520442889918 to get 0.4698463103929541192166982154228.

$$0.4698463103929541192166982154228-0.8191520442889918\times 0.573576436351046=0$$

Multiply 0.8191520442889918 and 0.573576436351046 to get 0.4698463103929541192166982154228.

$$0.4698463103929541192166982154228-0.4698463103929541192166982154228=0$$

Subtract 0.4698463103929541192166982154228 from 0.4698463103929541192166982154228 to get 0.

$$0=0$$

Compare 0 and 0.

$$\text{true}$$