trigonometry basic formulas and identites. i need all the formulas pls answer me fast
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Answer:
sin^2x +cos^2x =1
sec^2x -tan^2x=1
cosec^2x -cot^2x=1
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Answer:
sin(A+B)=sinA cosB+cosA sinB
sin(A-B)=sinA cosB-cosA sinB
cos(A+B)=cosA cosB-sinA sinB
cos(A-B)=cosA cosB+sinA sinB
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