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hjlf
3 years ago
6

Please help me with this question please

Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

○ sin 15° = sin 30°⁄2 = ±√[1 - cos 30°\2]

Step-by-step explanation:

According to the Sine Half-Angle Identity, this is the formula:

sin x = sin ˣ⁄2 = ±√[1 - cos x\2]

Notice the <em>-</em><em>cos</em><em> </em><em>x</em><em>\</em><em>2</em><em> </em>inside the radical. The second option nearly resembles this option. It has a positive symbol inside. Do not let this confuse you. The Cosine Half-Angle Identity is the formula that has a positive in the radical:

cos x = cos ˣ⁄2 = ±√[1 + cos 30°\2]

I am joyous to assist you anytime.

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$0.57

Step-by-step explanation:

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Hope I helped! Brainleist!

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3 years ago
A monument in the shape of a square pyramid was built in a park.
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<h3>Least amount of money that should be budgeted</h3>

First step

Using Pythagorean theorem to find the surface area

Since POR is a right triangle

Hence:

PO=20

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Second step

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Learn more about budget least amount here:brainly.com/question/7068523

brainly.com/question/25294118

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