Math, asked by smanushi09, 2 months ago

Please provide proper explanation for this answer.
Find the value of x if cos2x= cos60 sin30 + sin60 cos30

Answers

Answered by sonisingh7

2

Answer:

Let her monthly income be Rs x.

Savings = Rs 120

Expenditure = 90% of x=90100x=9x10

Savings = Total monthly salary − Expenditure = x−9x10=x10 = 120

x=10×120=1200

Thus, total monthly salary = Rs 1200

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