Question

all formula (Algebra and trigometry)​

Answer 1

Answer:

a^2-b^2 =(a+b) (a-b)

(a-b)^2=a^2+b^2-2ab

(a+b)^2=a^2+b^2+2ab

sin theta =P/H

cos theta=B/H

tan theta =P/B

cot theta =B/P

sec theta =H/B

cosec theta =H/P