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Show that 2sin(x) =(4cos(x)-1)/tan(x) can be written as: 6cos^2(x)-cos(x)-2=0

Rearranging gives:4cos(x)-1 = 2sin(x)tan(x) Substituting in tan(x)=sin(x)/cos(x) gives:4cos(x)-1 = 2sin(x)(sin(x)/cos(x))2sin2(x)=4cos2(x)-4cos(x)Substituting in 2sin2<...

OT
Answered by Olivia T. Maths tutor
16041 Views

The General Form of the equation of a circle is x^2 + y^2 + 2gx +2fy + c = 0. Find the centre of the circle and the radius of the circle in terms of g f and c.

Given a circle in the general form you can complete the square to change it into the standard form.x2 + 2gx + y2 +2fy +c = 0 (1). General form of an equation which has the completing...

RS
Answered by Rushabh S. Maths tutor
6356 Views

Solve the equation: 4x-2=6x+3

4x-2=6x+3 (-4x)-2=2x+3 (-3)-5=2x (/2)-2.5=x

CR
Answered by Charlotte R. Maths tutor
3899 Views

Find the lowest common multiple and highest common factor of 30 and 60.

Find 30 and 60 as products of their prime factors using factor trees: 60 = 2 x 2 x 3 x 5, 30 = 2 x 3 x 5. Use a Venn diagram to represent the prime factors of 30 and 60 with the groups 'prime factors of 3...

AM
Answered by Anna M. Maths tutor
8226 Views

What should I do if I can’t answer this question?

Remember you can never be marked down for what you right. Time is of the essence so skip the question and come back to it. You need to identify the topic of the question and you should do everything you ...

Answered by Maths tutor
2599 Views

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