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The height of two towers are 180 metres and 60 metres respectively. If the angle of elevtion of the top of the 1st tower from the foot of the 2nd tower is `60^@` , then calculate what is the angle of elevation of the top of the 2nd tower from the foot of the first?

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The heigths of two towers are 180 metres and 60 metres respectively. If the angle of elevation of the top of the second tower from the foot of the 1st tower is 30^@ , then calculate what is the angle of elevation of the top of the 1st tower from the foot of the 2nd tower?

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UNITED BOOK HOUSE-KANACHI HIGH SCHOOL-EXERCISE
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  9. Geometrically find the value of sqrt(21),

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  10. Sum of two angles is 135^@ and their difference is pi^c/12. Find the s...

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  11. If sin theta+ sin^2 theta = 1, prove that cos^2 theta+ cos^4 theta = ...

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  12. If x tan 30^@ + y cot 60^@ = 0,2x-y tan 45^@ = 1, then find the value ...

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  13. The height of two towers are 180 metres and 60 metres respectively. If...

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