Question

If sin A - cos A = 0,
then the value of
sin A + cos* A is​

Answer 1

Answer:

sinA - cosA = 0

or, sinA = cosA

or, sinA = sin(π/2 - A)

or, A= π/2 - A

or, 2 A = π/2

A= π/4

sinA+ cosA

= sin(π/4)+cos(π/4)

=1/√2 + 1/√2

=2/√2

√2

Answer 2

Answer:

sinA- cosA =0

(90-A)=0

A=90

sin90+cos90

= 1+0

= 1