W.S_IMP_ Double+Half Angle Identities

W.S_IMP_ Double+Half Angle Identities - Kuta Software -...

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Unformatted text preview: Kuta Software - Infinite Algebra 2 Name___________________________________ Period____ Date________________ Double- and Half-Angle Identities Use a double-angle identity to find the exact value of each expression. 1) sin 120 2) tan 60 3) cos 4 3 4) sin 5 3 Use a half-angle identity to find the exact value of each expression. 5) tan 45 6) sin 165 7) sin 5 6 8) cos 30 Use a double-angle or half-angle identity to find the exact value of each expression. 9) cot 3 10) cot 2 3 11) sec 5 12 12) cot 60 13) cot 240 14) cot 5 3 15) sin = - 7 25 and 270 < < 360 Find cos 2 16) cos = 1 3 and < < 90 Find sin 2 17) cos = 4 5 and 270 < < 360 Find sin 2 18) cos = 2 5 5 and < < 90 Find sin 2 19) cos = - 4 5 and 90 < < 180 Find sin 2 20) cos = - 15 17 and 180 < < 270 Find tan 2 21) tan = - 7 24 and 3 2 < < 2 Find cot 2 22) cot = 4 3 and < < 3 2 Find sin...
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W.S_IMP_ Double+Half Angle Identities - Kuta Software -...

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