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nishant

· started a discussion

· 1 Months ago

?? (Question: 337009.0 )

i m getting 4/3
angle cbd=22.5 (angle apb=acb+dbc) and acb=1/2*aob=7.5

Question:

O is a centre of circle. AC and BD are two chords of the circle intersecting each other at P. If ∠AOB=15o and ∠APB=30o, then tan2 ∠APB + cot2 ∠COD is equal to

Options:
A)

1/3

B)

2/3

C)

4/3

D)

10/3

Solution:

Ans: (c)


Amit meena

· commented

· 1 Months ago

Amit meena 57
sol of Q 100

Amit meena

· commented

· 1 Months ago

sol Q100
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