\left( \cos ^ { 2 } 28 ^ { \circ } - \sin ^ { 2 } 62 ^ { \circ } \righ – InterviewSolution

1.	\left( \cos ^ { 2 } 28 ^ { \circ } - \sin ^ { 2 } 62 ^ { \circ } \right)
Answer» cos² 28° - sin²(62°)cos²(90° - 62°) - sin²(62°)sin²(62°) - sin²(62°)0

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