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Worksheet: Double-Angle and Half-Angle Identities
Q1:
Simplify .
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Q2:
Simplify .
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Q3:
Find the value of .
Q4:
Simplify .
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Q5:
Find the value of without using a calculator.
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Q6:
Find the value of .
Q7:
Find the value of given without using a calculator.
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Q8:
Knowing that , find and .
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Q9:
Knowing that , find and .
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Q10:
Find the value of .
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Q11:
Find the value of given where without using a calculator.
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Q12:
Find, without using a calculator, the value of given where .
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Q13:
Find, without using a calculator, the value of given where .
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Q14:
Find, without using a calculator, the value of given where .
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Q15:
Find the value of given where without using a calculator.
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Q16:
Find, without using a calculator, the value of given where .
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