$\triangle A B C$ एक समकोण त्रिभुज है जिसमें $\angle C=90^{\circ}$ है, तो $\cos (A+B)$ का मान है
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$\triangle A B C$ एक समकोण त्रिभुज है जिसमें $\angle C=90^{\circ}$ है, तो $\cos (A+B)$ का मान है

$\triangle A B C$ एक समकोण त्रिभुज है जिसमें $\angle C=90^{\circ}$ है, तो $\cos (A+B)$ का मान है
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$\triangle A B C$ एक समकोण त्रिभुज है जिसमें $\angle C=90^{\circ}$ है, तो $\cos (A+B)$ का मान है

(क) 0

(ख) 1

(ग) $\frac{1}{2}$

(घ) $\frac{\sqrt{3}}{2}$

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