# Worksheet: Solving Equations Using Cofunction Identities

In this worksheet, we will practice solving trigonometric equations using cofunction identities.

Q1:

Find the value of given where .

• A
• B
• C
• D

Q2:

Find the value of given where .

• A
• B
• C
• D

Q3:

Find the value of given where is the smallest positive angle.

• A
• B
• C
• D

Q4:

Find the general solution of the equation .

• A where
• B where
• C where
• D where

Q5:

Find the value of given where .

• A
• B
• C
• D

Q6:

Find the value of given where .

• A
• B
• C
• D

Q7:

Find the value of given where .

• A
• B
• C
• D

Q8:

Find the value of given where .

• A
• B
• C
• D

Q9:

Find given where .

• A
• B
• C
• D

Q10:

Find the value of given where .

• A
• B
• C
• D

Q11:

Find the value of given where .

• A
• B
• C0
• D
• E

Q12:

Find given where is a positive acute angle.

• A
• B1
• C
• D

Q13:

Find given where is a positive acute angle.

• A1
• B
• C
• D

Q14:

Find the value of that satisfies where .

• A
• B
• C
• D

Q15:

Find the value of that satisfies where .

Q16:

Which of the following is the general solution of the equation ?

• A or , where
• B or , where
• C or , where
• D or , where

Q17:

Find the set of values satisfying , where .

• A,
• B,
• C,
• D,