Question

If sin 0=3/5 and cos 0=4/5 find cos2+ sin20

Answer 1

Answer:

33/25

Step-by-step explanation:

Sin20= 2sin0cos0

cos20= 1-cos^20

SIN20= 2(3/5)(4/5)

= 24/25

Cos20=1 - (4/5)"2

=1 - (16/25)

= 25-16÷25

= 9/25

cos20 + Sin20 = 24/25 + 9/25

= 24+9 /25

= 33/25

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