Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
c=−2xcos(2x)
Evaluate
21xc=4−1cos(2x)
Use b−a=−ba=−ba to rewrite the fraction
21xc=−41cos(2x)
Divide both sides
21x21xc=21x−41cos(2x)
Divide the numbers
c=21x−41cos(2x)
Solution
More Steps
Evaluate
21x−41cos(2x)
Rewrite the expression
21x−4cos(2x)
Multiply by the reciprocal
−4cos(2x)×x2
Rewrite the expression
−41×cos(2x)×x2
Reduce the numbers
−2cos(2x)×x1
To multiply the fractions,multiply the numerators and denominators separately
−2xcos(2x)
c=−2xcos(2x)
Show Solution
