Column ? I | Column - II | ||
a. | \[\sin (x+y)\sin (x-y)\] | i. | \[{{\cos }^{2}}x-{{\sin }^{2}}y\] |
b. | \[\cos (x+y)\cos (x-y)\] | ii. | \[\frac{1-\tan \theta }{1+\tan \theta }\] |
c. | \[\cot \left( \frac{\pi }{4}+\theta \right)\] | iii. | \[\frac{1+\tan \theta }{1-\tan \theta }\] |
d. | \[\tan \left( \frac{\pi }{4}+\theta \right)\] | iv. | \[{{\sin }^{2}}x-{{\sin }^{2}}y\] |
A) a - i, b - ii, c - iii, d - iv
B) a - ii, b- iv, c - iii, d -i
C) a - iv, b- ii, c- i, d - iii
D) a - iii, b - ii, c - iv, d - i
E) None of these
Correct Answer: E
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