prove that sin²A+sin²Atan²A=tan²A
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Step-by-step explanation:
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Step-by-step explanation:
sin2A (1+tan2A)
sin2A (1+sin2A/cos2A)
sin2A (sin2A + cos2A)÷cos2A
sin2A ×1/cos2A
so tan2A
hence proved
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