Question

sinA+cosA=root 2sin(90-A) then cotA=?

Answer 1

sinA+cosA=√2cosA
sinA=√2cosA-cosA
sinA=cosA(√2-1)
√2-1=sinA/cosA
√2-1=tanA
therefore
cotA=1upon√2-1

If you understood the answer then please help me to get brainlist☺

Answer 2

Answer:

Step-by-step explanation:

SinA+ cosA= √2cosA

SinA= cosA (√2-1)

√2-1= sinA/ cosA

√2-1= tanA

Hence proved///