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((sin 47^(@))/( cos 43^(@)))^(2) + (( co...

`((sin 47^(@))/( cos 43^(@)))^(2) + (( cos 43^(@))/( sin 47^(@)))^(2)-4 cos^(2) 45^(@)` व्यंजक के मान ज्ञात करो ।

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