DAE MATH-113

Applied Mathematics-I

Chapter 6 : General Identities

DAE Common Technologies | First Year

Multiple Choice Questions

Chapter:06 (General Identities)

Question 1:

Sin (α + β) is equal to:

\({Sin α Cos β + Cos α Sin β}\) \({Cos α Cos β - Sin α Sin β}\) \({Sin α Cos β - Cos α Sin β}\) \({Cos α Cos β + Sin α Sin β}\)

Question 2:

Cos (α - β) is equal to:

\({Cos α Cos β - Sin α Sin β}\) \({Cos α Cos β + Sin α Sin β}\) \({Cos α Sin β - Sin α Cos β}\) \({Sin α Cos β + Cos α Sin β}\)

Question 3:

\({tan({45^0}-x)}\) is equal to:

\({\frac{Cos x + Sin x}{Cos x - Sin x}}\) \({\frac{1 + tan x}{1 - tan x}}\) \({\frac{1 + cot x}{1 - cot x}}\) \({\frac{Cos x - Sin x}{Cos x + Sin x}}\)

Question 4:

cos(\({\frac{π}{2}}+θ\)) is equal to:

Cos θ -Cos θ Sin θ -Sin θ

Question 5:

Sin(\({90^0}-θ\)) is equal to:

-Sin θ Sin θ -Cos θ Cos θ

Question 6:

Sin(\(π-x\)) is equal to:

-Sin x; Sin x Cos x -Cos x

Question 7:

tan(\({\frac{π}{2}}+θ\)) is equal to:

Tan θ Cot θ -Cot θ -Tan θ

Question 8:

Cos(\(π+x\)) is equal to:

Cos θ -Sin θ -Cos θ Sin θ

Question 9:

Cos(\({\frac{π}{2}}+θ\)) is equal to:

Cos θ Sin θ -Cos θ -Sin θ

Question 10:

tan(\({\frac{3π}{2}}+θ\)) is equal to:

Tan θ -Tan θ Cot θ -Cot θ

NOTE
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INSTRUCTOR
MUHAMMAD BIN JAMEEL
BSC ENGG. CIVIL

PBTE | DAE | MATH-113 APPLIED MATHEMATICS-I | MCQs | Chapter : 06 General Identities