In this lesson, we will learn how to use the double-angle and half-angle identities to evaluate trigonometric values.
Students will be able to
Q1:
Use the addition formula to find an expression for sin2𝛼.
Q2:
Find the value of 1−1+tantan without using a calculator.
Q3:
Find the value of 27575sincos∘∘ without using a calculator.
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