A) one
B) two
C) zero
D) none of these
Correct Answer: C
Solution :
Adding both the given equations, we get \[7\,(\cos \theta +\sin \theta )=10\] or \[\cos \theta +\sin \theta =10\text{/}7\] But maximum value of\[\cos \theta +\sin \theta \]is \[\sqrt{{{1}^{2}}+{{1}^{2}}}=\sqrt{2}<\frac{10}{7}\] So, no\[\theta \]is possible.You need to login to perform this action.
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