Question

cot A =a/b then cosA-sinA/cosA+sinA​

Answer 1

Answer:

cotA= a/b

cosA/cosB=a/b

therefore,

cosA-sinb/cosA+sinB=a-b/a+b

a-b/a+b×a-b/a-b

(a-b)^2/a^2-b^2=a^2+b^2-2ab/a^2-b^2

=(a-b)(a-b)/(a+b)(a-b)

=a-b/a+b

Answer 2

Step-by-step explanation:

i hope this will help you if you agree then mark me as brainlist