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In this lesson, we will learn how to find exact circular function values.

Q1:

Find π given s i n π = 1 2 and c o s π = β 3 2 .

Q2:

Find the value of c o s ο» π 3 ο .

Q3:

Find the value of s e c ο» π 4 ο .

Q4:

Find the value of s i n ο» π 6 ο .

Q5:

Find the value of s e c ο» π 6 ο .

Q6:

Find the value of t a n ο» π 4 ο .

Q7:

Find the value of t a n 5 π 6 .

Q8:

Find the value of c o s 2 π 3 .

Q9:

Find the value of c o s 5 π 4 .

Q10:

Find the value of s i n 3 π 4 .

Q11:

Find t a n π΄ , given π΄ π΅ πΆ is a right-angled triangle at πΆ where π΄ π΅ = 2 0 c m and π΅ πΆ = 1 6 c m .

Q12:

What is the value of t a n π in the given triangle?

Q13:

Find t a n π΅ , given π΄ π΅ πΆ is a right-angled triangle at πΆ where π΄ πΆ = 8 c m and π΅ πΆ = 1 5 c m .

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