allerysec²θ में से tan²θ घटाने पर सदैव कौन सा अचर प्राप्त होता है?
A2
B0
C1
D−1
Answer & Solution
Correct answer: C. 1
sin²θ + cos²θ = 1 को cos²θ से विभाजित करने पर tan²θ + 1 = sec²θ प्राप्त होता है, अतः sec²θ - tan²θ = 1 है।
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