If the sin 90° = 1, then the cos 0° = _____. (1 point)
2 answers:
Answer:
cos 0° = 1
Step-by-step explanation:
In given triangle sin 90° = 1
and we know the relation between cosine and sin is represented by
sin x = cos (90-x)
Therefore, sin 90° = cos ( 90-90 )
= cos 0°
= 1
Therefore, cos 0° = 1 will be the answer.
<span>sin 90° = 1
</span>
cos 0° = 1
There's a simple formula : <em>sin θ = cos (90°- θ)</em> or <em>cos θ = sin (90°- θ) </em>
So : cos 0° = sin (90° - 0°) = sin 90° = 1
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