Question

help me prove this
cosA/1+sinA = secA-tanA

Answer 1

lol!!! look at your expression, what is the right hand side???

Answer 2

secA-tanA ???????? lol any hpnd?

Answer 3

times both numerator and denominator by (1-sin)
you have
\[\dfrac{cos}{1+sin}*\dfrac{1-sin}{1-sin}=\dfrac{cos -sincos}{cos^2}=\dfrac{1}{cos}-\dfrac{sin}{cos}=sec-tan\]
You put A after each of the sin/cos to submit hihihih

Answer 4

oh thaks frnd