5. Sin(480) Cos (890) + Cos(780) Sin(1050)
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(sqrt(3) cos(890°))/2 - 1/4
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Answer:
Your answer is 1.102868532
Step-by-step explanation:
as sin(480)=0.8660254038
cos(890)=-0.984807753
cos(780)=0.5
sin1050)=-0.5
by adding u will get the above answer
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