If z1=√3+i√3 and z2=√3+i, then the complex number (z1z2)50 lies in the
A
First quadrant
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B
Second quadrant
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C
Third quadrant
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D
Fourth quadrant
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Solution
The correct option is A First quadrant
Given, z1=√3+i√3,z2=√3+i
Therefore, (z1z2)50=(√3+i√3√3+i)50 =⎡⎣(√3(1+i)√3+i)2⎤⎦25=[3(2i)3−1+2√3i]25 =(3i1+√3i)25=325i25(−2ω2)25 =−i.ω(32)25=−i(−1+√3i2)(32)25=(32)25(√32+12i) Hence, (z1z2)50 lies in the first quadrant as both real and imaginary parts of this number are positive.