## Miscellaneous problems MCQ Basic level

Compared to other sections, mathematics is considered to be the most scoring section. If prepared thoroughly, mathematics can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1.

sinh ix is
•  isin(ix)
•  isin x
•  -isin x
•  sin(ix)

isin x

Q2. The value of sec h(i22/7) is

•  -i
•  i
•  0
•  1

-1

Q3. The imaginary part of cosh(a+iB) is

•  cosh a cosB
•  sinh a sinB
•  cos a coshB
•  cosa cosB

sinh a sinB

Q4. cosh (a+iB)-(a-iB) is equal to

•  2 sinh a sinh B
•  2 cosh a cosh B
•  2i sinh a sin B
•  2 cosh a cos B

2i sinh a sin B

Q5. If cos(u+iv)=a+iB,then a2

+B2+1 equals
•  cos2u+sinh2v
•  sin2u+cosh2v
•  cos2u+cosh2v
•  sin2u+sinh2v

cos2u+cosh2v

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