Trigonometric Identities

Basic

100

What are the three basic trigonometric identities. 

Sine, Cosine, and Tangent. 

200

What are trigonometric functions defined by?

Trigonometric ratios.

300

The sum total of the internal angles of a triangle is:

180°

400

What does Theta represent?

A measured angle.

500

Theorem that helps us to find the sides of a right triangle?

Pythagorean Theorem

Formula

100

What is the Sin formula?

Sin=Opposite side/Hypotenuse

200

What is the Cos formula

Cos=Adjacent side/Hypotenuse. 

300

What is the Tan formula

Tan=Opposite side/Adjacent side.

400

1+cot²x=?

1/sin²x

500

What is the cot formula

Adjacent side/Opposite side.

Verifying

100

For which figure is trigonometry used?

Triangles

200

sin²x+cos²x=?

1

300

1+tan²x=?  

1/cos²x

400

What trigonometric ratio is obtained from the following quotient? sin(B)/cos(B)

tan (B)

500

tan(A)*cot(A) = 1 (False or True)

True

Quotient/Ratios

100

Quotient for Tan?

Tan= Sin/Cos

200

Quotient for Cot?

Cot=Cos/Sin

300

cot(x)=24/7. Find tan(x)?

tan(x)=7/24

400

cos(x)=4/5. Find sin(x)?

sin(x)=3/5

500

Find the value of x, if sin(x)=cos34

sin(x)=sin(56)