Question

find all solutions for sin^2 u/2+cosu=1

Answer 1

sin(u/2)^2 + cos(u) = 1 ?

Answer 2

no the way i had it. seems weird i know

Answer 3

convert sin^2u/2 in terms of cos ^2

Answer 4

sin(u)^2 / 2 + cos u = 1 ?

Answer 5

yes i agree with pancha, if its the latter expression

Answer 6

and cos 2x as 2cos²x - 1

Answer 7

cos(2x) = 2cos^2x - 1

Answer 8

okay and to find all the solutions, i would....
thats where i forgot

Answer 9

you would get a quadratic in terms of cos
cosider cos u/s as x and find solutions of quadratic

Answer 10

sorry its cos u/2 not cos u/s