is equal to |
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a) |
b) |
0 |
c) |
d) |
None of these |

is equal to |
|||||||

a) |
b) |
0 |
c) |
d) |
None of these |

1 Answer

127 votes

**(c)**

Let …(i)

Then,

…(ii)

Adding (i) and (ii), we get

__ALITER__ We have,

127 votes

127