Question

if sin(90°-3A)=cos(5A-40°),then what is the value of A?​

Answer 1

Answer:

value of A =18

Step-by-step explanation:

sin(2A)=cos(3A)

=sin(2A)=sin(90-3A)

=2A=90-3A

=2A+3A=90

=5A=90

=A= 90/5

=A =18

value=18

hope u have been understood

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