Question

If sinA=1 find cos A
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Answer 1

Step-by-step explanation:

Given that :-

SinA= 1

=>SinA = Sin90°

=>A=90°

now the value of Cos A = Cos90°= 0

The answer is 0

Answer 2

Answer:

cosA=0

Step-by-step explanation:

Squaring both sides,

sin^2A=1

now we know cos^2A +sin^2A=1

putting value of sin^2A

we get cos^2A+1=1

or,cos^2A=0

or,cosA=0

Please marks this as brainliest answer....