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Maths TNSB Mentoring
Class 10
Trigonometry
Trigonometric Identities I
6.
Trigonometric ratios
Question:
4
m.
If \(sin \ \theta + cos \ \theta = a\) and \(sec \ \theta + cosec \ \theta = b\), then the value of \(b(a^2 - 1)\) is equal to ________.
\(2a\)
\(2ab\)
\(0\)
\(3a\)
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