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Trig Identities 14
Trig Identities Ch 14
| Question | Answer |
|---|---|
| sin^2x*cos^2x | 1 |
| tan^2x+1 | sec^2x |
| cot^2x+1 | csc^2x |
| sin(x+2PIn) | sinx |
| csc(x+2PIn | cscx |
| cos(x+2PIn) | cosx |
| sec(x+2PIn) | secx |
| tan(x+PIn) | tanx |
| cot(x+PIn) | cotx |
| sin(2x) | 2sinxcosx |
| cos(2x) | cos^2x-sin^2x 2Cos^2x-1 1-2sin^2x |
| tan(2x) | 2tanx/1-tan^2x |
| sin^2x | 1/2(1-cos(2x)) |
| cos^2x | 1/2(1+cos(2x)) |
| tan^2x | 1-cos(2x)/1+cos(2x) |
| sin(A+-B) | sinAcosB+-cosAsinB |
| cos(A+-B) | cosAcosB-+sinAsinB |
| tan(A+-B) | tanA+-tanB/1-+tanAtanB |
| sin(Pi/2 -x) | cosx |
| csc(Pi/2 -x) | secx |
| tan(Pi/2 -x) | cotx |
| cos(Pi/2 -x) | sinx |
| sec(Pi/2 -x) | cscx |
| cot(Pi/2 -x) | tanx |
| sin x/2 | +-sqrt(1-cosx/2) |
| cos x/2 | +-sqrt(1+cosx/2) |
| tan x/2 | 1-cosx/sinx sinx/1+cosx |
Created by:
Monkeyboy1518
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