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Unit circle
A circle centered at the origin with radius 1 (i.e. this circle) is called as unit circle. The unit circle is very useful in Trigonometry.
(b) x2+ ( y - 3)2 = 4
In this part, it looks as the x coordinate of the center is zero as with the earlier part. However, this time there is something more with the y term and thus comparing this term to the standard form of the circle we can see that the y coordinate of the center have to be 3. The center & radius of this circle is then,
center = (0, 3) radius = √4 = 2
Following is a sketch of the circle. The center is marked alongwith a red cross in this graph.
in a sale a clothes shop reduces its prices by 30% a shirt usually costs £38 how much is it in the sale
prove that the composition of two simple harmonic of the same period and in the same straight line is also a simple harmonic motion of the same period.
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The locus of the midpoint of the chords of an ellipse which are drawn through an end of minor axis is called
how do you regroup?
why cant we find the value of 1 upon zero
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Express the product of -9p3r and the quantity 2p - 3r in simplified form. The translated expression would be -9p3r(2p - 3r). Noticed that the key word product means multiply.
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