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Question

Match the following
In a triangle ABC,
Column-IColumn-II
(a)bcosC+ccosB(p)a
(b)b2+c22bccosA(q)(a+b+c)a
(c)bcsinA(r)a2
(d)bsinAasinB(s)0

A
(a)(p),(b)(r),(c)(q),(d)(s)
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B
(a)(q),(b)(r),(c)(p),(d)(s)
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C
(a)(r),(b)(q),(c)(q),(d)(s)
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D
None of these
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Solution

The correct option is A (a)(p),(b)(r),(c)(q),(d)(s)
(a) a=bcosC+ccosB ...(p)

(b) cosA=b+ca2bc ...(r)

(c) sinA=(a+b+c)abc

bcsinA=(a+b+c)a......(q)

(d) bsinAasinB=0 ...(s)

as asinA=bsinB

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