Math, asked by anil1220, 7 months ago

If sin( 2A + 10°)= cos 0°, then A is

Answers

Answered by ecialise2005

0

Answer:

A = 49.5

is the answerr

Step-by-step explanation:

Answered by xSoyaibImtiazAhmedx

1

Step-by-step explanation:

A is 40°

when A= 40°,

sin( 2A + 10°)= sin(2×40°+10°)

=sin (80°+10°)

= sin 90°

= 1

=cos 0°

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