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Inga [223]
3 years ago
13

What basic trigonometric identity would you use to verify that sin x con x tan x= 1-cos^2x?

Mathematics
1 answer:
Blababa [14]3 years ago
7 0

Answer:

The answer is (a) ⇒ tanx = sinx/cosx

Step-by-step explanation:

∵ (sinx)(cosx)(tanx) = (sinx)(cosx)(sinx/cosx) = sin²x

∵ sin²x = 1-cos²x

∴ L.H.S = R.H.S

∴ (sinx)(cosx)(tanx) = 1 - cos²x

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A landscaper is comparing the costs of potted plants from two nurseries. Nursery P charges $15 per plant plus a $50 delivery fee
photoshop1234 [79]

Answer:

The required number of plants is 10.

Step-by-step explanation:

Nursery P charges $15 per plant plus a $50 delivery fee on any order. Nursery Q charges $20 per plant and no delivery fee.

If x number of plants that must be delivered for the total cost to be the same at both nurseries, then

15x + 50 = 20x

⇒ 5x = 50

⇒ x = 10

Therefore, the required number of plants is 10. (Answer)

4 0
3 years ago
Becky took out an 80/20 mortgage on a $167,000 home. What is the amount
Aleonysh [2.5K]
The answer is D $33,400
4 0
3 years ago
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How many zeros does this equation have?
anastassius [24]
I would say the answer is 2
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3 years ago
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Simplify the expression:<br> b2–3b+7+5b
MArishka [77]
The answer is :

4b+7

hope this helps!!
6 0
3 years ago
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One fifth of the sum of two angles is 24 and half their difference is 14.Calculate the two angles
Brums [2.3K]
Let, the angles = a, b
It is given that, a+b /5 = 24
a + b = 120   --- equation (1)

a-b/2 = 14
a - b = 28  ---- equation (2)
a = 28 + b

Now, substitute this value of b in equation (1), 
28 + b + b = 120
2b = 120 - 28
b = 92/2
b = 46
Now, a = 28 + b = 28 + 46 = 74

In short, Your Angles are 74 and 46

Hope this helps!
4 0
3 years ago
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