Question

Fill in the blanks
sin 20°=cos _____°​

Answer 1

Answer:

sin 20° = cos 70°

Step-by-step explanation:

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Answer 2

Answer:

sin20° = cos 70°

step by step

sinФ = cos(90°-Ф)

sin20° = cos(90°- 20°)

sin20° = cos70°