Thursday

October 23, 2014

October 23, 2014

Posted by **Lisa** on Tuesday, January 15, 2013 at 2:38pm.

3cos(t) + 3*sqrt(3)*sin(t)=6cos(t-x)

I know that 6 cos(t-x) can be 6(cos(t)cosx(x)+sin(t)sin(x))

I dont know where to go from there though.

- Calculus -
**Steve**, Tuesday, January 15, 2013 at 2:45pmwhat you have now is

3cost + 3√3 sint = 6cosx cost + 6sinx sint

for them to be identical, the coefficients must match:

3 = 6cosx

3√3 = 6sinx

looks like x = π/3

**Answer this Question**

**Related Questions**

Calculus - Please look at my work below: Solve the initial-value problem. y'' + ...

Calculus - Second Order Differential Equations - Posted by COFFEE on Monday, ...

Math/Calculus - Solve the initial-value problem. Am I using the wrong value for ...

Calculus - Second Order Differential Equations - Solve the initial-value problem...

Math - derivative of sinusoidal (check + help) - h(t) 0.6cos(2t) + 08 sin(t) h'(...

Trig - prove the identity (sinX)^6 +(cosX)^6= 1 - 3(sinX)^2 (cosX)^2 sinX^6= ...

Trigonometry - I need help with I just can't seem to get anywhere. this is as ...

math (trig) - i have some problems doing trig the first one is: Show that cos(x/...

trig - What kind of reflections are the following trig functions? y = 3cos(x-1) ...

Pre Cal. - 1. Use half-angle identity to find the exact value of cos165. MY ...