sin45.sin30+cos45.cos30
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sin 45=cos 45=1/√2
sin 30=1/2
cos 30=√3/2
therefore,
sin45sin30+cos45cos30=1/2√2 +√3/2√2 =(1+√3)/2√2
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sin 45=cos 45=1/√2
sin 30=1/2
cos 30=√3/2
therefore,
sin45sin30+cos45cos30=1/2√2 +√3/2√2 =(1+√3)/2√2
bkum:
wrong answer
its correct
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