Section D consists of 4 carryng 4 marks e
Section - A
Solve the following question
1. Find the value of A for which sin a=v3 COSA
2. Write empirical formula
3. A coin tossed two times. Find the probability a
d
1. A pole 6m high casts a shadow 2V3m long on
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Answer:
sinA=
2
3
(Given)
2cot
2
A−1
=2cot
2
A+2−2−1
=2(cot
2
A+1)−3
=2cosec
2
A−3
=
sin
2
A
2
−3
=2(
3
2
)
2
−3
=
3
8
−3
=
3
−1
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