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# in a triangle angle A > angle B. if the measured angles A and B satisfy the equation 3sinx - 4sin3x + k = 0, 0

148 Points
11 years ago

Dear

3sinx - 4sin3x + k = 0

sin3x =-k

since  0<k<1

so    -1<sin3x<0 ...............1

A and B are angel of triangle so

0< A,B,A+B<∏

0<3A,3B<3∏

from equation 1

∏ <3A,3B <2∏

A and B angel satisfied the equation 1  then

A+B =∏

so angel C=0 which is not possible in a triangle.

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