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vitfil [10]
3 years ago
6

If the sin 90° = 1, then the cos 0° = _____. (1 point)

Mathematics
2 answers:
tatyana61 [14]3 years ago
8 0

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.

Cloud [144]3 years ago
7 0
<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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