Quiz Discussion

Title: Trigonometry function( sine, cosine, tangent)

Grade: 1400-a Lesson: S3-L1

Explanation: Let us discuss a few questions on this topic and review the answers to every question.

Quiz: Discussion in Class

Problem Id Problem Options

Steps 1

If sin(α) = \$3/5\$ and cos(β) = \$4/5\$, where α and β are acute angles, find tan(α + β).

A) \$ 18/13 \$

B) \$ 7/12 \$

C) \$ 13/9 \$

D) \$ 24/7 \$

Steps 2

If sin \$ \theta = 3/5\$ and \$ \theta\$ are in Quadrant II, find the values of cos(\$ \theta\$ ) and tan(\$ \theta\$ ).

A) \$ - 4/5\$, \$ - 3/7\$

B) \$ 5/4\$, \$ - 4/3\$

C) \$ - 4/5\$, \$ - 3/4\$

D) \$ - 4/3\$, \$ 3/7\$

Steps 3

Find the value of (sin 45° + cos 45°) – (sin 30° + cos 60°).

A) 2

B) \$sqrt(2) +1\$

C) -2

D) \$sqrt(2) -1\$

Steps 4

Determine value of \$3cos((2π) /4)\$.

A) 2

B) 0

C) -2

D) 3

Steps 5

Evaluate the following expression: \$ sin(pi/3) cos(pi/6) + cos(pi/3) sin(pi/6) \$.

A) 1

B) \$ 1/2\$

C) \$ \sqrt3/2\$

D)\$ \sqrt 3\$


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