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A vertical tower PQ subtends th same ang...

A vertical tower PQ subtends th same angle `30^(@)` at each of two place A and B, 60 m apart on the ground, AB subtends an angle `120^(@)` at the foot of the tower. If h is the height of the tower, then `9h^(2)+h+1` is equal to

A

3121

B

2136

C

3600

D

None of these

Text Solution

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The correct Answer is:
A, C
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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (Questions Asked In Previous 13 Years Exam)
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  14. Consider the circle x^2 + y^2 = 9 and the parabola y^2 = 8x. They inte...

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