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Bump! Any one know how to do the above questions? Also, does anyone know how to solve the equation sin x = 1/2 for [-pi, to 2pi] I'm confused with the negative domain Thanks

Anyone?

If (x-1)^3 = 8 then would x-1 = +- cube root of 8, or just + cube root of 8 and why? Also, does anyone know how you would work out sin(11pi/4), which is sin(2.75pi), and is in quadrant 2, and the rule for quadrant 2 is pi - base, but since it's 2.75, would you do (2pi) + (pi-base)? And how...

Could you please explain how to do it as read my textbook but got confused with it's explanation

Thanks. Also, do you know how to find the general solutions to the equations I posted above? Thanks

Also, can someone please explain how to find the general solution to the following equations. Cos 2(x+pi/3) = 1/2 2 tan 2(x+pi/4) = 2√(3) 2 sin(x+pi/3) = -1 Thanks Silly question, but is sin 2(x+pi/3) the same as sin(2x+2pi/3)

What is the difference between a general solution and solving for a specified domain in trig equations?

thanks

how do you find the value of cos (-120)? Urgent, please please help

Anyone?

Do sin, cos and tan graphs have asymptotes?

Is a limit not well behaved only if the denominator = 0, or also if the numerator = 0 ? Thanks Have an exam tomorrow:(

The probability that a goldfish survives 1 month in a home where there is no cat is 0.9, whereas the probability that a goldfish surviving one month in a home where there is a cat present is 0.3 There is a 40% chance of selecting a home in which a cat is present What is the probability of a...

Bump Any help would be appreciated

When stating the domain and range, how do you know whether to put ( or [

The area of a bushfire, A hectares, t hours after the fire has started is modeled by the rule A = 90t^2 - 3t^3, t > 0 After how many hours does the fire go out A = 0 90t^2 - 3t^3 = 0 t = 0 and 30 Which answer do i choose? 0 hours or 30 hours?

How are you meant to know whether a question asking you to find a sin value, for example, sin 225, is asking for the value in degrees or radians? Would the same apply for cos and tan?

if f(x) = 2x^2 + 3x, lim h → 0 (f(x+h) - f(x))/h = What exactly is this question asking?

Thanks pikachu975

To find the rate of change of the function y = x^2 at the point (3,10) Would it be y = 2x, y = 2(3) y = 6 is this correct?