Co-function-drame

What is the complement to: cos 40⁰ = ?

• sin 50⁰

• cos 50⁰

• tan 50⁰

• sin 40⁰

What is the complement to: sin 20⁰ = ?

• cos 70⁰

• sin 70⁰

• cos 20⁰

• tan 20⁰

What is the complement to: cos 38⁰ = ?

• sin 62⁰

• sin 52⁰

• cos 52⁰

• sin 38⁰

What is the missing number?
Sin(    ) = Cos (89)

• 0
• 1
• 2
• 3

What is the missing number?
Sin(45) = Cos(   )

• 45
• 95
• 145
• 195

What is the missing number?
Sin(   ) = Cos(40)

• 30
• 40
• 50
• 60

What is the complement angle to 12°?

• 78°
• 68°
• 168°
• 90°

What is the missing number?
sin(60) = cos(   )

• 10
• 20
• 30
• 40

In a right triangle,

sin(40−x)°=cos(3x)°.

What is the value of x?

• 10

• 15

• 20

• 25

Which value of x satisfies the equation sin(3x+5)°=cos(4x+1)°?

• 30

• 24

• 12

• 4