Algebra
Calculus
Trigonometry
Matrix
Question
Calculate the value
3611
Alternative Form
≈0.00277
Evaluate
19(19cos(π))cos(3π)
Calculate
19(19−1)cos(3π)
Use b−a=−ba=−ba to rewrite the fraction
19(−191)cos(3π)
Remove the parentheses
19−191cos(3π)
Calculate
More Steps
Evaluate
cos(3π)
Rearrange the numbers
cos(π+2π)
Rearrange the terms
cos(π)
Calculate the trigonometric value
−1
19−191(−1)
Multiplying or dividing an even number of negative terms equals a positive
19191
Multiply by the reciprocal
191×191
To multiply the fractions,multiply the numerators and denominators separately
19×191
Solution
3611
Alternative Form
≈0.00277
Show Solution
