Performance Task: Trigonometric Identities — Unit test Answers
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According to your graphing calculator, what is the approximate solution to the trigonometric inequality over the interval radians?
A
and
B
and
C
and
D
and
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What is the range of ?
A
and
B
and
C
and
D
and
23
A kite is made up of two isosceles triangles, KIT and KET, with the lengths shown. The top triangle of the kite, ΔKIT, is made from approximately 17 square inches of material.Heron’s formula: Area =
A
31 square inchesB
34 square inchesC
48 square inchesD
62 square inches24
Review the incomplete steps in the derivation of the tangent sum identity.Which action can be taken to the expression in Step 3 to give an expression for Step 4?
A
divide both the numerator and denominator by sin(x)sin(y)B
divide both the numerator and denominator by sin(x)cos(y)C
divide both the numerator and denominator by cos(x)sin(y)D
divide both the numerator and denominator by cos(x)cos(y)25
Which expression is equivalent to (1 + cos(x))2?
A
sin(x)B
1 – cos(x)C
1 – cos2(x)D
(1 + cos(x))(sin(x))Did you find these answers helpful?
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