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yaroslaw [1]
4 years ago
15

Given that sec x - tan x=1÷4​

Mathematics
1 answer:
solniwko [45]4 years ago
5 0

Answer:Let =tan2

t

=

tan

⁡

x

2

, then cos=1−21+2

cos

⁡

x

=

1

−

t

2

1

+

t

2

and tan=21−2

tan

⁡

x

=

2

t

1

−

t

2

.

Now

1+21−2+21−2(1+)21−21+1−tan2

Step-by-step explanation:

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Which expression has a value equal to 28/4?
Nat2105 [25]

Answer: 7 times 4

Step-by-step explanation:

3 0
3 years ago
there are 10 pies.4 of the pies are apple. the rest are cherry. what fraction of the pies are cherry?
valentina_108 [34]

6/10 (or 60%) of the pies are cherry

3 0
3 years ago
5x^{2}<br> <img src="https://tex.z-dn.net/?f=5x%5E%7B2%7D" id="TexFormula1" title="5x^{2}" alt="5x^{2}" align="absmiddle" class=
madreJ [45]

Step-by-step explanation:

{5}^{2}  = 25

7 0
3 years ago
Read 2 more answers
Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the P
Oxana [17]

Answer:

<h2>Unknown side = 28</h2><h2>tan B = 7/24</h2>

Step-by-step explanation:

The question is incomplete. Here is the complete question.

Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize the denominator if applicable. Find tan B when a = 96 and c = 100.

Pythagoras theorem states that the square of the hypotenuse side of a right angled triangle is equal to the sum of the square of its other two sides. Mathematically c² = a²+b² where c is the hypotenuse and a,b are the other two sides.

From the question, we are given a = 96 and c = 100, to get the unknown side 'b', we will substitute the given values into the formula above;

c² = a²+b²

100²  = 96² +b²

b²  = 100²  - 96²

b²  = 10,000 - 9216

b²  = 784

b = √784

b = 28

Hence, the unknown length is 28.

To get tanB, we will use the SOH, CAH, TOA trigonometry identity

According to TOA, tan B = opposite/adjacent

tan B = b/a (note that side b is the opposite in this case since the angle we are considering is B)

Given b = 28 and a = 96

tan B = 28/96

tan B = 4*7/4*24

tan B = 7/24

8 0
3 years ago
Errors in the programming language Python can be broadly classified into two types, syntax errors, and logical errors. When writ
Alenkasestr [34]

Answer:

Step-by-step explanation:

a( Pr(no syntax error) = 1-Pr(syntax error arises)

Pr(no syntax error) = 1 -0.3

Pr(no syntax error) = 0.7

b) Pr(no error occurred) = 1-Pr(both error occurred)

Pr(no error occurred) = 1-0.1

Pr(no error occurred) = 0.9

c) Pr(any type of error occurred) = Pr(syntax error occur)+Pr(logical)

Pr(any type of error occurred) = 0.5+0.3 = 0.8

d) Pr(syntax and logical) = Pr(syntax occur)+Pr(logical or syntax occur)

= 0.3+0.1

= 0.4

e) Independent event are events that occurs at the same time. The occurrence of one does not affect the other.

Pr(logical and syntax) = pr(syntax)×pr(logical)

Given

pr(syntax)×pr(logical) = 0.3×0.5 = 0.15

From the question, Pr(logical and syntax) = Pr(both error occurred) = 0.1

Since Pr(logical and syntax) ≠ pr(syntax)×pr(logical), this means that the errors are not independent

5 0
3 years ago
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