हल करना cot( alpha- beta)= cot alpha.cot beta+1 cot beta-cot alpha | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\cot(\alpha-\beta)=\frac{cot\alpha.cot\beta+1}{cot\beta-cot\alpha}$$