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Question
sec 60° . cos2 30° + sin2 45° का मान ज्ञात कीजिए।
Sum
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Solution
sec 60° . cos2 30° + sin2 45°
= `2 xx ((sqrt3)/2) + (1/sqrt2)^2`
= `2 xx 3/4 + 1/2`
= `3/2 + 1/2`
= 2
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