itssimplyme

itssimplyme

From Khamis Mushait, Saudi Arabia
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  • bamteck
    lease help me this problems ;

    1. Find the maximum value of 1/√cosx + sinx + 5 , and the value of x where the maximum value occurs.

    2. Solve the equation 10sin^2 (1/2x) - 5sinx = 4 , giving the values of x between 0 and 360 to the nearest 0.1

    Thank You in anticipation
    itssimplyme
    itssimplyme
    1. Sorry about the late reply. deep in my own studies right now. Alright, let's see here.... maximum of that....

    -that's y= 1/√cosx + sinx + 5 , I'm assuming. So the maximum will be at a point where the gradient is 0. that is, dy/dx=0
    So we have to work out dy/dx of this equation.
    itssimplyme
    itssimplyme
    Can you double check these questions. I haven't looked at the second question, but the first seems too complicated to be right.
    I'll reply as soon as you get back to me on these
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