3 years ago

Prove that sin30/cos30+sin60/cos60=sin90

2 answers:

aev [14]3 years ago

6 0

you just have to expand the trig. functions into their corresponding values and then finish them off.

5 0

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

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Len [333]

Answer: A

(He has the side lengths in the wrong place in the cosine ratio)

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Sedaia [141]

The inverse is where the x and y values are flipped, so the left side would have 6 7 8 9 and the right side would have 9 10 11 12 for the inverse.

Therefore your answer is A.

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marta [7]

The answer is A
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2 years ago

solniwko [45]

Answer:

He squared the numbers inside without following the appropriate rule

Step-by-step explanation:

<u>what he should have done </u>

<u /> $(x-3)^2\\= x^2 - 2 *x*3+3^2\\= x^2-6x+9$

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2 years ago

stich3 [128]

Answer:

The option "The function has a positive y-intercept" is true because f(0) = 2, which is the y-intercept.

Step-by-step explanation:

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2 years ago

Prove that sin30/cos30+sin60/cos60=sin90​