Question

if tan =4/5, find cos​

Answer 1

Step-by-step explanation:

Cos theta -Sin theta /Cos theta +Sin theta

1- Sin theta /Cos theta

-------------------------------

1+Sin theta /Cos theta

[Dividing both numberator and denominator by cos θ]

1-tan theta/1+tan theta

1-4/5

--------

1+4/5

1/9

Answer 2

Step-by-step explanation:

See the solution, Hope it helps!!