Home › UP Board Class 10 › mathematics › intro_trigonometry › Prove or evaluate: (1 + tan²A)(1 − sin²A).
Prove or evaluate: (1 + tan²A)(1 − sin²A).
Asec²A
Bsin²A
C1
D0
Answer & Solution
Correct answer: C. 1
(1 + tan²A) = sec²A and (1 − sin²A) = cos²A. Product = sec²A · cos²A = 1.
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