Answer:
Explanation:
sin²β + sin²β×tan²β = tan²β
sin²β( 1 + tan²β ) = tan²β
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sin²β + cos²β = 1
+ = ⇒ tan²β + 1 = sec²β ⇔ 1 + tan²β = sec²β
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1 + tan²β =
L.H. = sin²β ( ) = tan²β
R.H. = tan²β
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