Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 Mathematics Trigonometry Trigonometric Identities
यदि secθ - tanθ = 3 है, जहाँ -90∘ < θ < 0∘ है, तो व्यंजक \(\frac{\text {cosec} \theta - 1}{\text {cosec} \theta + 1}\) का मान ज्ञात कीजिये।
1
\(\frac{1}{9}\)
2
9
3
\(\frac{1}{3}\)
4
3