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sin 28° cos 62° + cos 28° sin 62° का मान ज्ञात कीजिए।

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sin 28° cos 62° + cos 28° sin 62° का मान ज्ञात कीजिए।

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sin 28° cos 62° + cos 28° sin 62°

= sin (90° – 62°) cos 62° + cos (90° – 62°) sin 62°

= cos 62° cos 62° + sin 62°sin 62°

= cos2 62° + sin2 62° = 1

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