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zavuch27 [327]
4 years ago
12

Prove that

+cos3x=tan4x" alt="sin 5x+sin3x/cos5x+cos3x=tan4x" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
liraira [26]4 years ago
6 0
Sin5x + sin3x = 2sin4x.cosx
cos5x + cos3x = 2cos4x.cosx
so \frac{2sin4x.cosx}{2cos4x.cosx} = \frac{sin4x}{cos4x}
= tan4x

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A $340 item is marked down by 50%. What is the new cost of the item?
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Step-by-step explanation:

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Allison is rolling her hula hoop on the playground. The radius of her hula hoop is 35 cm. What is the distance the hula hoop rol
lidiya [134]

Answer:

Distance covered by hula hoop rolls in 4 full rotations is 880 cm .

Step-by-step explanation:

Formula

Perimeter\ of\ a\ circle = 2\pi r

Where r is the radius of the circle.

As given

Allison is rolling her hula hoop on the playground.

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r = 35 cm

\pi = \frac{22}{7}

Putting the value in the formula

Perimeter\ of\ a\ hula hoop = 2\times \frac{22}{7} \times 35

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As given

The hula hoop rolls in 4 full rotations.

Distance covered by hula hoop rolls in 4 full rotations =  220 × 4

                                                                                          = 880 cm

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6 0
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Which expression is equal to the expression below (6x9)^5
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3 years ago
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