allerysec²θ నుండి tan²θ ను తీసివేస్తే ఎల్లప్పుడూ ఏ స్థిరాంకం మిగులుతుంది?
A2
B0
C1
D−1
Answer & Solution
Correct answer: C. 1
sin squared ప్లస్ cos squared = 1 ని cos squared చే భాగిస్తే tan squared + 1 = sec squared వస్తుంది, కాబట్టి sec²θ - tan²θ = 1 అవుతుంది.
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