evaluate 2(cos^245° +tan^260°)-6(sin^245°-tan^230°)
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Step-by-step explanation:
2(cos²45+tan²60°)-6(sin²45°-tan²30°)
the next step on the clip
=2×7/2-6×1/6 =7-1=6
thus, 2(cos²45+tan²60°)-6(sin²45°-tan²30°)
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