Question

Sin (A+B+C) =
acute angles The
A, B, C being
1 and Sec (A+C) = 2
measure of B is
.​

Answer 1

the measures of b is 75 degreee

Answer 2

sin (A+B+C)=?

convert sec into cos

then a+b+c=180

a+c= 90

then solve it

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