i understand how to prove them and all but i just need help proving the following 2: 1) (sinx + tanx)/cosx + 1 = tan x 2) tanx + tan^3x = sec^2x/cot x thanks
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Hello, checkmarks! We have: . Multiply by : . Factor: . We have: .
thank you so much i have another one..last one, i promise #3 (1-cos^2x)(sec^2x - 1) = tan^2x asgaghkcos^2xagjahajaaha
Hello, checkmarks! This one is not true . . . probably a typo . . . We have: . . .
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