Can I get some help in finding the limit of the following trigonometric function?

Ltsin(a+3h)-3sin(a+h)+3sin(a+h)-sin a

h-->0h^3

the h in the denominator is cube.

the denominator is sin(a+3h)-3sin(a+2h)+3sin(a+h)-sin a

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- Sep 13th 2008, 10:36 AMtariq_h_tauheedLimit of trigonometric function
Can I get some help in finding the limit of the following trigonometric function?

*Lt*__sin(a+3h)-3sin(a+h)+3sin(a+h)-sin a__

*h-->0*h^3

the h in the denominator is cube.

the denominator is sin(a+3h)-3sin(a+2h)+3sin(a+h)-sin a - Sep 13th 2008, 12:33 PMShyam
- Sep 13th 2008, 12:55 PMSoroban
Hello, tariq_h_tauheed!

Where did this problem come from?

It looks like we walked in on the*middle*of someone's work . . .

Quote:

Could it be: .

If so, we have a chance of solving it . . . otherwise, forget it!