allerysec²θ ਤੋਂ tan²θ ਘਟਾਉਣ ਨਾਲ ਹਮੇਸ਼ਾ ਕਿਹੜਾ ਸਥਿਰ ਅੰਕ ਨਿਕਲਦਾ ਹੈ?
A2
B0
C1
D−1
Answer & Solution
Correct answer: C. 1
ਪਾਪ ਵਰਗ ਨੂੰ cos ਵਰਗ ਨਾਲ ਵੰਡਣ ਨਾਲ 1 ਨੂੰ cos ਵਰਗ ਨਾਲ ਵੰਡਣ ਨਾਲ ਟੈਨ ਵਰਗ + 1 = ਸਕਿੰਟ ਵਰਗ ਮਿਲਦਾ ਹੈ।
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