Prove that cot(pi/4-2cot^(- 1)3)=7 | CLASS 12 | INVERSE TRIGONOMETRIC FUNCTION | MATHS | Doubtn...
Class 12 Maths Prove that cot(pi/4-2cot^(- 1)3)=7,Inverse trigonometry
Class XII INVERSE TRIGONOMETRIC FUNCTIONS NCERT EXEMPLAR || cot[pi/4 -2cot inverse 3] =7
`cot (pi/4 - 2 cot^(-1) 3)` is
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सिद्ध कीजिए कि 2cot^(-1)5+cot^(-1)7+2cot^(-1)8=pi//4 | 12 | TRIGONOMETRY | MATHS | DAS GUPTA | D...
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`2 cot^(-1)3+cot^(-1)7=`