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For 1 -5, verify each trigonometric identity. For Problem 4, use two double angle identities. 1. tand = cost seco 2. secex + csc2x =
For 1 -5, verify each trigonometric identity. For Problem 4, use two double angle identities. 1. tand = cost seco 2. secex + csc2x = sec2x csc2x coto cot x + 1 3. Sin x + COS X = sin (2x) 4. CSC X = 2cosz x 1 - cos(2x) 5. tan x - tan y = sin(x - y) COS X COs y For 6 - 10, solve each trigonometric equation for the domain given. If asked to given answers in radians, round to the nearest hundredths place. For Problem 10, solve graphically using a graphing utility. 6. 2sin x + V3 = 0, all real x. 7. cos' x + 3cos x - 4 = 0, 0 S x S 360 8. 1.5sin 0 + 2.7 = 4.3 - 2.1 sin0, 0
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