Q.
General solution of simultaneous equations tanθ=−13 and cosθ=32 is
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a
θ=nπ+π6,n∈z
b
θ=nπ+11π6,n∈z
c
θ=2nπ+π3,n∈z
d
θ=2nπ+11π6,n∈z
answer is D.
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Detailed Solution
We have tanθ=−13<0,cosθ=32>0∴θbelongs to 4th quadrant and it is 2π−π6=11π6∴general solution is θ=2nπ+11π6,n∈z
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