Question

prove that 1 minus tan a by 1 + tan a = cot A minus 1 by cot A + 1

Answer 1

Answer:

Step-by-step explanation:

LHS=1-tanA by1+tanA=

1by1-1bycotA whole by 1by1+1bycotA

When u take LCM, we get,

CotA-1byCotAmultiplyintoCotAbyCotA+1

When it gets canceled each other, we get,

1-CotAby1+ CotA by changing sign method=RHS

Hence, LHS=RHS

Hence, proved that's all!