Home › AP EAPCET (Engineering) › Mathematics › Trigonometry: Trigonometric Ratios upto Transformations › Find the value of (sec θ − tan θ)(sec θ + tan θ).
Find the value of (sec θ − tan θ)(sec θ + tan θ).
A1
Btan θ
C2 sec θ
D0
Answer & Solution
Correct answer: A. 1
The product is sec²θ − tan²θ, which equals 1 by the Pythagorean identity.
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