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60 degrees = π/3 radiansA = 1/2r2θr = 8θ = π/31/2 x 82 x π/3 = 33.5103216... cm233.5103216... x 2 = 67.0 cm2Answered by • Maths tutor3205 Views
In order to differentiate this fraction, you will need to use the quotient rule, which if you don't remember is:y = u/v then dy/dx = (vdu/dx − u dv/dx)/ v^2)First you need to identify ...
sin2x = tanx Take everything to left hand side, so LHS equals 0sin2x - tanx = 0Recall double angle formula : sin2x = 2sinxcosx, also notice that tanx can be written as sinx/cosx givi...
Firstly, we define a tangent as a straight line touching a curve at 1 point only.We can describe a straight line using this linear relation:y - y1 = m.(x - x1)We know a point on this...
(In the following answer, y' denotes dy/dx, i.e. the derivative of y with respect to x, where y is a function of Answered by • Maths tutor3583 Views
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