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seraphim [82]
4 years ago
5

Evaluate cos(tan^-1 0)

Mathematics
1 answer:
AlladinOne [14]4 years ago
3 0

Answer:

cos(tan^{-1}(0))=1

Step-by-step explanation:

Evaluate cos(tan^-1 0)

cos(tan^{-1}(0))

We know that tan(0)=0

tan (0 degree)=0

tan^{-1}(0)=0

Replace it in our problem

cos(tan^{-1}(0))

cos(0)

At 0 degree the cos value is 1

So co(0)=1

cos(tan^{-1}(0))=1

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The following data are arranged in ascending order and the median of the data is 60.
choli [55]
The median of the data is 60. That means the two middle numbers divided by 2 = 60.

(x + x + 2) / 2 = 60...multiply by 2
2x + 2 = 120
2x = 120 - 2
2x = 118
x = 118/2
x = 59

x + 2 = 59 + 2 = 61

so ur numbers go : 26,29,42,53,59,61. 70, 75, 82, 93
8 0
3 years ago
What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}?
Sophie [7]
Hi there! The answer is B.

5r \leqslant 6r - 8
Subtract 6r from both sides.

- r \leqslant  - 8
Divide both sides of the inequality by -1. Remember that dividing by a negative makes the sign flip.

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Therefore, the solution must be bigger than or equal to 8. From the given solution set, the answer is B. {8, 9, 10}

~ Hope this helps you!

3 0
3 years ago
What is :<br><br>(49^x)(7^x^2)=2401^2
ludmilkaskok [199]
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 x^2-2x-8 = 0\\ \\ a=1, \ b=-2, \ c=-8 \\ \\\Delta =b^2-4ac = (-2)^2 -4\cdot1\cdot (-8) = 4 +32 =36 \\ \\x_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{2-\sqrt{36}}{2 }=\frac{ 2-6}{2}=\frac{-4}{2}=-2 \\ \\x_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{2+\sqrt{36}}{2 }=\frac{ 2+6}{2}=\frac{8}{2}= 4 \\ \\Answer: \ x=-2 \ \ or \ \ x=4

7 0
3 years ago
Read 2 more answers
Pls help me to find the answer e,f,g,h no. only
Nikitich [7]

1. Change both numbers to common base.

2. Use quotient rule a^x \div a^y = a^{x-y}

e)

You can write 9 as 3², then both numbers have the same base.

9^x = (3^2)^x = 3^{2x}, where x is the exponent

I cannot really see the exponents because picture is bad quality.

9^x \div 3^y =

= (3^2)^x \div 3^y =

=3^{2x} \div 3^y =

= 3^{2x-y}

You want to replace x and y with actual numbers, but as I said the picture is too bad.

f)

Convert to base 4, then quotient rule.

g)

Use the quotient rule, you already have same base.

h)

Convert to base \frac{2}{3}, then quotient rule.

6 0
2 years ago
Pls help me or else...................
Kipish [7]

Answer:

i cant see the pic sorry

Step-by-step explanation:

5 0
3 years ago
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