Find a numerical value of one trigonometric function of x for cos2x+ 2 sin x - 2 = 0 a.
Sinx = 0
c.
sinx = 1
b.
tanx = 0
d.
tanx=1

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram

answer: 1+1

step-by-step explanation: 1+1 is at least 2

step-by-step explanation: