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Q1 of 47 Page 1

The shadow of a 30 m high tower on the ground at some time of the day is 10√3 m long. Find the angle of elevation of the sun at that time.


Let angle of elevation be θ



According to the problem:






Answer: The angle of Elevation is 60°


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2

If the nth term of the A.P. –1, 4, 9, 14, ...... is 129, find the value of n.

3

In Fig. 1, O is the centre of the circle, PQ is a chord and PT is tangent to the circle at P. If POQ = 70°, find TPQ.


(Fig. 1)

4

If three different coins are tossed together, then find the probability of getting two heads.

5

Find the value of k for which the roots of the quadratic equation 2x2 + kx + 8 = 0 will have equal value.

Questions · 47
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