Question

PLease help look at link

Answer 1

b

Answer 2

i did it simply by finding the angle whose sin is 11/14 then dividing the result by 2 . then finding the sine of that.

Answer 3

is b...

Answer 4

just multiply sin\[\theta\]/2 and cos\[\theta\]/2 and equal to 11/28

Answer 5

because\[\sin \theta =2\sin \theta/2 *\cos \theta /2 and\]

Answer 6

i think this formula can help u alot :\[\sin ^2+\cos ^2=1\]
and we will use in this problem this shape of the formula:
\[\sin =\sqrt{1-\cos ^2}\] and also
\[\cos =\sqrt{1-\sin ^2}\]

Answer 7

11/(14*2) and the \[\theta\] is in 90 then both sin and cos will be possitive....