style Search

Q:

What is the simplified value of $\sin^{2} (90 - θ) - [\sin (90 - θ) sinθ / tanθ]$ ?

A) 1	B) cosec θ
C) 0	D) cos θ

Answer & Explanation Answer: C) 0

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If $x^{2} + (1 / x^{2}) = 1$ , then what is the value of $x^{48} + x^{42} + x^{36} + x^{30} + x^{24} + x^{18} + x^{12} + x^{6} + 1$ ?

A) -9	B) 0
C) 1	D) 9

Answer & Explanation Answer: C) 1

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of $(a^{2} + b^{2} + c^{2})$ ?

A) 75	B) 83
C) 217	D) 225

Answer & Explanation Answer: B) 83

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If $x^{1 / 4} + x^{- 1 / 4} = 2$ , then what is the value of $x^{81} + (1 / x^{81})$ ?

A) -2	B) 0
C) 1	D) 2

Answer & Explanation Answer: D) 2

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If $(x^{2} / yz) + (y^{2} / zx) + (z^{2} / xy) = 3$ , then what is the value of ${(x + y + z)}^{3}$ ?

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: A) 0

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

Consider the following chemical reaction :

${aFe}_{2} O_{3} (s) + bCO (g) + cFe (s) + {dCO}_{2}$

In the balanced chemical equation of the above, which of the following will be the values of the coefficients a, b, c and d respectively?

A) 3, 2, 3, 1	B) 1, 3, 2, 3
C) 2, 3, 3, 1	D) 3, 3, 2, 1

Answer & Explanation Answer: B) 1, 3, 2, 3

Explanation:

Fe2O3 + 3CO = 2Fe + 3CO2

Hematite + Carbon Monoxide = Iron + Carbon Dioxide

In this reaction, the iron oxide is reduced to iron, and the carbon is oxidised to carbon dioxide.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

Q:

If A/3 = B/2 = C/5, then what is the value of ratio ${(C + A)}^{2} : {(A + B)}^{2} : {(B + C)}^{2} ?$

A) 9 : 4 : 25	B) 25 : 4 : 9
C) 64 : 25 : 49	D) 49 : 25 : 64

Answer & Explanation Answer: C) 64 : 25 : 49

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If $\sec^{2} θ + \tan^{2} θ = 5 / 3$ , then what is the value of tan2θ?

A) 2√3	B) √3
C) 1/√3	D) Cannot be determined

Answer & Explanation Answer: B) √3

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

Searching for "style"

Quick Links