What is the value of \sin 24^{\circ} \sin 66^{\circ}-\cos 24^{\circ} \cos 66^{\circ}+ \tan 24^{\circ} \tan 66^{\circ}-\cot 24^{\circ} \cot 66^{\circ} ?

UPSC CDS 2 2021 Math Paper

Question : 39 of 100

Marks: +1, -0

What is the value of sin‌24∘‌sin‌66∘−cos‌24∘‌cos‌66∘+ tan‌24∘‌tan‌66∘−cot‌24∘‌cot‌66∘ ?

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