3 years ago

What’s the lcm 5, 12, 20 ASAP

Mathematics

2 answers:

Artemon [7]3 years ago

4 0

Answer: The least common factor is 60

zhannawk [14.2K]3 years ago

3 0

Answer:

Step-by-step explanation:

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Could use some help with this math xl problem

noname [10]

Make the picture bigger, can barely see it

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2 years ago

. Evaluate tan(α + β) = sin(????+????) / cos(????+????) to show tan(???? + ????) = tan(????)+tan(????????) / 1−tan(????) tan(???

grandymaker [24]

Answer with Step-by-step explanation:

We are given that

$tan(\alpha+\beta)$

$\frac{sin(\alpha+\beta}{cos(\alpha+\beta)}$

By using formula $tan x=\frac{sin x}{cos x}$

$\frac{sin\alpha cos\beta+sin\beta cos\alpha}{cos\alpha cos\beta-sin\alpha sin\beta}$

By using property: $sin(x+y)=sin x cosy+cos x sin y$

$cos(x+y)=cos x cosy-sin x siny$

Divide numerator and denominator by $cos\alpha cos\beta$

Then, we get

$\frac{\frac{sin\alpha}{cos\alpha}+\frac{sin\beta}{cos\beta}}{1-\frac{sin\alpha sin\beta}{cos\alpha cos\beta}}$

$tan(\alpha+\beta)=\frac{tan\alpha+tan\beta}{1-tan\alpha tan\beta}$

Hence, proved

Substitute $\alpha=\beta$

Then we get

$tan 2\alpha=\frac{tan\alpha+tan\alpha}{1-tan^2\alpha}$

$tan(2\alpha)=\frac{2tan\alpha}{1-tan^2\alpha}$

Hence, proved.

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3 years ago

Write an expression with parentheses (don't simplify!) to represent the following quantity:

AveGali [126]

So this would be:
5(173 + 32)
Because the 5 in front is the "5 times" part.
Hope this helps!

5 0

3 years ago

50 POINTSSSS! Use trigonometric identities to verify that this expression is equal.

Llana [10]

Answer:

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Step-by-step explanation:

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3 years ago

Convert 108° to radians, give your answer in terms of pi<br>

sweet-ann [11.9K]

Answer:

339.292006π = 339.29π to 2 dp

Step-by-step explanation:

108 / 57.2957796 = 1.88495559 1.88495559×180°/π = 107.99999988° and 1.88495559×180° = 339.292006 π

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3 years ago