Question

evaluate sin 130 cos 110 + cos 130 sin 110

Answer 1

Hey buddy you answer is here....
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sin130c°os110°+cos130°sin110°
=>sin(130°+110°).......{•.•sin(A°+B°)=sinA°cosB°+cosA°sinB°}<=
=sin240°
=sin(270°-30°)
=-cos30°
=-√3/2
May be it's helpfull for you...
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