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The student can answer this in several ways. One using the simple, known identities csc= 1/sin, cot=1/tan, sec=1/cos, tan=sin/cos, sin^2 + cos^2 = 1 and basic algebra is the following:4csc^2 - cot^2...
The formula booklet is useful for this type of question, but only once we've rearranged the expression into the correct form. The formula booklet expression is: (1 + z)^n = 1 + nz + 0.5n*(n-1)Answered by David M. • Maths tutor3674 Views
First differentiate the function to obtaindy/dx = 6x^2 + 30x + 24Then set this equal to 0 and solve to find the x values of the stationary points6x^2 + 30x + 24 = 06(x^2 + 5x + 4) ...
First, take the side of the equation that looks most complicated because it often needs simplifying. This is the LHS in this case. The LHS has cos(2x) twice - therefore the double angle formula probably a...
This term cannot be integrated in the form that it is in. We will have to do some algebraic manipulation to rewrite it. The term can be split into partial fractions because the denominator of the term has...
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