A vertical pole of length 80 m is situated on the horizontal plane. The base of the pole is at P. There are two points A and B such that P, A, B are on the same straight line. Let the angles of elevation of top of the pole from A and B be α and β (α > β) respectively. If PA = 64 m and AB = 36 m, then what is (α + β) equal to?
60°
90°
120°
135°
For election to the Lok Sabha, a nomination paper can be filed by
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Which among the following events happened earliest ?
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