Complex Numbers MCQS With Solution | Solve Complex Numbers MCQS

40. sin iz= 

A. sinh z 

B. sinh iz 

C. isin z 

D. isinh z 

41. cosiz= 

A. cosh z

B. cosh iz 

C. i cos z 

D. i cosh z 

42. tan iz= 

A. tanh z 

B. tanh iz 

C. itan z 

D. itanh z 

43. sinh iz= 

A. sin z 

B. isin z 

C. sinh z 

D. isinh z 

44. cosh iz= 

A. cos z 

B. i cos z 

C. cosh z 

D. i cosh z 

45. tanh iz= 

A. tan z 

B. itan z 

C. tanh z 

D. itanh z 

46. Multiplication of a vector z by … rotates the vector z counterclockwise through an angle of measure α. 

A. e^α 

B. e^−α 

C. e^iα 

D. e^−iα 

47. −3 − 4i= 

A. 5e^itan^−1 4/3 

B. 5e^i(− tan^−1 4/3 ) 

C. 5e^i(π−tan^−1 4/3 ) 

D. 5e^i(π+tan^−1 4/3 ) 

48. For any complex number z, log z= 

A. ln |z| + i arg z 

B. ln z + i arg |z| 

C. ln |z| + i arg |z| 

D. All of these 

49. Which number(s) has(have) no complex logarithm? 

A. 0

B. Negative real numbers 

C. Non positive real numbers 

D. None of these 

50. For any complex number z, Logz= 

A. ln |z| + i Arg z 

B. ln z + i Arg |z| 

C. ln |z| + i Arg |z| 

D. All of these 

See also  Solve Mcqs Of Matrix | Matrix Mcqs with solution 2020
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