(sin θ − cos θ + 1)/(sin θ + cos θ − 1) is equal to(sin θ − cos θ + 1)/(sin θ + cos θ − 1) बराबर है
(sin θ − cos θ + 1)/(sin θ + cos θ − 1) बराबर है
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Correct answer: (A) 1/(sec θ − tan θ)1/(sec θ − tan θ)
Explanation
Using the identity (sin θ − cos θ + 1)/(sin θ + cos θ − 1) = 1/(sec θ − tan θ) (check at θ = 60°: both sides are about 3.73).सर्वसमिका (sin θ − cos θ + 1)/(sin θ + cos θ − 1) = 1/(sec θ − tan θ) (θ = 60° पर जाँच: दोनों पक्ष लगभग 3.73)।