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cupoosta [38]
3 years ago
8

The roots of

smiddle" class="latex-formula"> are sin a and cos a for some real value of a. Compute k.
Mathematics
1 answer:
Dafna11 [192]3 years ago
7 0

Answer:

10

Step-by-step explanation:

10x²-14x+k = 0

x1 = sin a

x2= cos a

x1+x2 ≤ 2

x1. x2 ≤ 1 => k/10 ≤ 1

k ≤ 10

so the value of k should be 10

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If a cylinder has a height of 15cm and 6cm radius.And Jenny has a 15litre bag of compost.How many flowerpots can she fill comple
Veronika [31]
I hope this helps you



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3 0
3 years ago
If the local linear approximation of f(x) = 2cos x + e^2x at x = 2 is used to find the approximation for f(2.1), then the % erro
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<u>Answer-</u>

The % error of this approximation is 1.64%

<u>Solution-</u>

Here,

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And,

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Taking (2, f(2)) as a point and slope as, f'(2), the function would be,

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\Rightarrow y-(2\cos 2 + e^{4})=(-2\sin 2 + 2e^{4})(x-2)

\Rightarrow y=(-2\sin 2 + 2e^{4})(x-2)+(2\cos 2 + e^{4})

The value of f(2.1) will be

\Rightarrow y=(-2\sin 2 + 2e^{4})(2.1-2)+(2\cos 2 + e^{4})

\Rightarrow y=(-2\sin 2 + 2e^{4})(0.1)+(2\cos 2 + e^{4})

\Rightarrow y=64.5946

According to given function, f(2.1) will be,

\Rightarrow f(2.1) = 2\cos 2.1 + e^{2(2.1)}

\Rightarrow f(2.1) = 65.6766

\therefore \%\ error=\dfrac{65.6766-64.5946}{65.6766}=0.0164=1.64\%

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3 years ago
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Advocard [28]
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Estimate the quotient of 394.6 divided by 9
N76 [4]
The answer rounded to the tenths place is 43.8, to the hundredths place is 43.84
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