Question

Evaluate: sine^2 60+cos^2 60

Answer 1

Answer:

1

Step-by-step explanation:

sin²60 + cos²60

= (√3/2)² + (1/2)²

= 3/4 + 1/4

= 4/4

= 1

OR

you can do it with the help of identity

sin²θ + cos²θ = 1

sin²60 + cos² 60

= 1

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Answer 2

Answer:

l1

Step-by-step explanation:

plzz see the attachment...

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