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त्रिकोणमिति
Trigonometry
Question 9 of 36
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Question 9
1 - cos²θ किसके बराबर है?
A. (a) sin²θ
B. (b) tan²θ
C. (c) sec²θ
D. (d) cos²θ
Explanation sin²θ + cos²θ = 1 से, 1 - cos²θ = sin²θ।