How [6(pi) - 2sin(3pi)]/5 = 1.87?

I get zero for 2sin(3pi). There is no way the answer is 1.87.

6(pi)/5 = 1.2, right?

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- Nov 27th 2013, 08:01 AMnycmathTrigonometric Subtraction
How [6(pi) - 2sin(3pi)]/5 = 1.87?

I get zero for 2sin(3pi). There is no way the answer is 1.87.

6(pi)/5 = 1.2, right? - Nov 27th 2013, 08:07 AMdokrbbRe: Trigonometric Subtraction
- Nov 27th 2013, 08:08 AMHallsofIvyRe: Trigonometric Subtraction
- Nov 27th 2013, 08:19 AMnycmathRe: Trigonometric Subtraction
I forgot to set my calculator to radians.

- Nov 27th 2013, 10:04 AMtopsquarkRe: Trigonometric Subtraction
- Nov 28th 2013, 03:18 PMnycmathRe: Trigonometric Subtraction
Yes, the problem is written correctly.