Assume that θ is a positive acute angle.
Given: sin θ =28/53
Find: sin2θ
1 answer:
Answer:
725 - 360 = 365
365 - 360 = 5
The acute angle is 5 degrees.
sin2θ = sin(2*5) = sin(10) = 0.1736
Step-by-step explanation:
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Hello,
let s note x the smaller number
x + (10+x) = 74
10+2x=74
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Answer:
Step-by-step explanation:
- √20 - √5 + √45 =
- 2√5 - √5 + 3√5 =
- (2 - 1 + 3)√5 =
- 4√5
Correct choice is D
