Which expression completes the identity sinusinv
O A. (sin(u + v) + sin(x – v]
O B. ][ sin(u + v) – sin(x – v]
Oc. [ cos(u – v) – cos(u + v)]
OD. [ cos(u + v) + cos(u – v]
OE. 008(u – v) + cos(u + v)]
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we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

multiply each one by 3.14

step-by-step explanation:

you can not solvr this without numbers