Questions
The number of integral values of K for which the equation has at least one solution is
a
8
b
6
c
5
d
4
detailed solution
Correct option is A
The equation 7cosθ+5sinθ=2K+1 has solution if ⇒−74≤2K+1≤74⇒−74−1≤2K≤74−1⇒−74−12≤K≤74−12⇒K=−4,−3,−2,−1,0,1,2,3Talk to our academic expert!
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Number of values of and satisfying the equation is
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