If a and b are zeroes of the polynomial 6x2-7x +2, find a quadratic polynomial whose zeroes are 1/a and 1/b.
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A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 40 cm from the mirror.
a) Write the type of the mirror.
b) Find the distance of the image from the object.
c) What is the focal length of the mirror?
d) Draw a ray diagram to show the image formation in this case
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