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Physics

Multiple Choice Question with Only One Choice Correct
Three resistors, each equal to 3, are connected so as to form a triangle. The equivalent resistance between any two vertices of the triangle is
(a) 1 (b) 2
(c) 3 (d) 9

Chemistry

Fill in the Blank :
The substituent Cl makes benzoic acid ........... .

Mathematics

The number of values of k for which the equation 7 cos x + 5 sin x = 2k + 1 has a solution is
(a) 4 (b) 8
(c) 10 (d) 12
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