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aliina [53]
2 years ago
9

With the aid of a power reducing formula, 14sin² acos² a = ?

Mathematics
1 answer:
Shtirlitz [24]2 years ago
6 0

The reduced form of the trig expression is 7/2sin²2a

<h3>Trigonometry identity</h3>

Trigonometry identities are written in terms of sine, cosine and tangent. Given the trigonometry identity

14sin² acos² a

Since sin(a)cos(a) = sin2a/2, hence

14sin²acos²a = 14[sin(a)cos(a)]²

14sin²acos²a = 14(sin2a/2)²

14sin²acos²a = 14/4(sin²2a)

14sin²acos²a = 7/2sin²2a

Hence the reduced form of the trig expression is 7/2sin²2a

Learn more on trigonometry expression here: brainly.com/question/27904371

#SPJ1

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For the given expression, which whole number (w) will make the expression true? 5/6
Sonja [21]

Answer:

D. 7

Step-by-step explanation:

The question is incomplete. Here is a possible complete question

For the given expression, which whole number (w) will make the expression true? 5/6 < w/6

A. 3

B. 4

C. 5

D. 7

Given the inequality expression:

5/6 < w/6

Cross multiply

5×6 < 6×w

30<6w

Divide both sides by 6

30/6 = 6w/6

5<w

Reciprocate both sides(this will change the sense of the inequality)

1/5>1/w

Cross multiply

w > 5×1

w>5

This shows that the value of w is a value greater than 5 but not 5. According to the option, the only value greater than 5 is 7. Hence the whole number (w) that will make the expression true is 7

7 0
3 years ago
Help me in this math please please
sweet-ann [11.9K]
A. -1 Because you would divide 3x and -6 by 2.

4 0
3 years ago
Read 2 more answers
If backpack is discounted 10% ib sale for $37.80 what is the original price
taurus [48]

the answer is $34. 36 if I understood your question correctly.
8 0
3 years ago
PLSS HELPPP!!! IN ORDER TO RECIEVE A BRAINLY, ANSWER QUICKLY AND CORRECTLY, AND MOST OF ALL, GIVE AN EXPLANATION!!! TYSM IN ADVA
Natalija [7]

Answer:

A. {−3.5, −2, 1, 2.5}

Step-by-step explanation:

Remember that the range is the possible values for Y in any given function, so in this case, we are given the Y values and we have to solve the function for x:

y=9+6x

6x=y-9

So we just insert the values, the first one being -12.

So since from the options only A has -3.5 as an option that's the correct answer.

hoped this helped! <3

7 0
3 years ago
Read 2 more answers
Please help me with all thank you
crimeas [40]
1. 7 : 07
2. 9 : 45
3. 6
4. 2 : 25
5. 8
6. 17
5 0
3 years ago
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