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5-4: Trig Identities Name:_________________ Hour: ________

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Presentation on theme: "5-4: Trig Identities Name:_________________ Hour: ________"β€” Presentation transcript:

1 5-4: Trig Identities Name:_________________ Hour: ________
Pre-Calculus 5-4: Trig Identities Name:_________________ Hour: ________ #’s I had trouble with: _________________ Use the given function value(s) and the trig identities to find the exact value of each indicated trig function. 1) cos πœƒ= ) cot 𝛼=3 a) sin πœƒ a) tan 𝛼 b) tan πœƒ b) csc 𝛼 c) sec πœƒ c) cot 90Β°βˆ’πœƒ d) csc 90Β°βˆ’πœƒ d) sin 𝛼 Use trig identities to verify the identities. 3) tan πœƒ cot πœƒ= ) tan 𝛼 cos 𝛼 = sin 𝛼 5) 1+ sin πœƒ 1βˆ’ sin πœƒ = π‘π‘œπ‘  2 πœƒ ) 𝑠𝑖𝑛 2 πœƒ βˆ’ π‘π‘œπ‘  2 πœƒ=2 𝑠𝑖𝑛 2 πœƒβˆ’1 Find Ο΄ 7) sin 15Β° 24 β€² 45”= cos πœƒ 8) csc 5πœ‹ 12 = sec πœƒ 9) Explain this math pun.


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