Teaching Jharkhand (JSSC) TGT (6 to 8) Mock Test 2023-24 Mathematics Trigonometry Trigonometric Identities
यदि tan A - tan B = x और cot B - cot A = y हो तो cot (A - B) किसके बराबर है?
1
\(\frac{1}{y}-\frac{1}{x}\)
2
\(\frac{1}{x}-\frac{1}{y}\)
3
\(\frac{1}{x}+\frac{1}{y}\)
4
\(-\frac{1}{x}-\frac{1}{y}\)