Question

Express cos theta in terms of tan theta​

Answer 1

Answer:

COS THETA = SIN ( 90- THETA)

COS / SIN = COT

COS = COT /SIN

UR QUESTION IS WRONG .

Answer 2

Step-by-step explanation:

$\because cos \theta = \frac{1}{sec \theta} \\ We\: know \:that:\\ sec^{2} \theta = 1 +tan^{2} \theta \\ \therefore \: sec \theta = \sqrt{1 +tan^{2} \theta } \: \\ \implies \: cos \theta = \frac{1}{ \sqrt{1 +tan^{2} \theta } }$