Question

Cos@ +sin@/cos@-sin@ =8
Cot@=?

Answer 1

Answer:

The answer is 9/7.

Step-by-step explanation:

Cos@ + sin@ / cos@ - sin@ = 8

=> 8cos@ - 8sin@ = cos@ + sin@

=> 8cos@ - cos@ = 8sin@ + sin@

=> 7cos@ = 9sin@

=> cos@ / sin@ = 9/7

=> cot@ = 9/7 (We Know, cos@ /sin@ = cot@)