Question

trigonometry basic formulas and identites. i need all the formulas pls answer me fast​

Answer 1

Answer:

sin^2x +cos^2x =1

sec^2x -tan^2x=1

cosec^2x -cot^2x=1

Answer 2

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