26. Without using trigonometric tables,prove that
sin 35° sin 55° - cos 35º cos 55° = 0
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Answered by
5
Answer:
Step-by-step explanation:
sin 35° sin 55° - cos 35º cos 55°
= SIn (90 - 55) SIn(90 -35) - Cos 35.Cos55
= Cos55*Cos35 - Cos35.Cos55 (∵ Sin(90 - θ) = Cosθ)
= 0
Answered by
6
Answer:
Without using trigonometric tables,prove that
sin 35° sin 55° - cos 35º cos 55° = 0
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