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Nostrana [21]
4 years ago
9

Tan A + tanB + tanC-tanA tanB tanC1-tanB tanC-tanC tanA - tanA tanB​

Mathematics
1 answer:
sashaice [31]4 years ago
3 0

Answer:

服務公司夢見手裡神經衰弱損失老師Jan損失啊愛沙尼亞是不是交往嗎就是歷史數據算不算雙氧水本身就是世界軍事實力宿舍江蘇省本書不是私人損失誰來是不是不是說備考無數台灣92我7是6給我看數字不是說本書我忘記說了結束時間舒適感五四運動和我萬家燈火下半身思考的劇的

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What basic trigonometric identity would you use to verify that sin x +1/ sin x=1 +csc x
SVETLANKA909090 [29]

Answer:  The correct option is (c). \csc x=\dfrac{1}{\sin x}.

Step-by-step explanation:  We are given to select the correct basic identity that we will use to verify the following:

\dfrac{\sin x+1}{\sin x}=1+\csc x.

We have

\dfrac{1+\sin x}{\sin x}\\\\\\=\dfrac{1}{\sin x}+\dfrac{\sin x}{\sin x}\\\\\\=1+\dfrac{1}{\sin x}.

In order to verify the given trigonometric equation, we must have

1+\dfrac{1}{\sin x}=1+\csc x\\\\\\\Rightarrow \dfrac{1}{\sin x}=\csc x\\\\\\\Rightarrow \csc x=\dfrac{1}{\sin x}.

Thus, the required identity that we will use is

\csc x=\dfrac{1}{\sin x}.

Option (c) is CORRECT.

5 0
3 years ago
One side of a triangle is 3 1/3 cm, another side is 2/3 cm shorter than the first side, and the third side is 1 2/3 cm longer th
Luba_88 [7]
3 1/3 - 2/3 = 2 2/3
3 1/3+ 1 2/3 = 5
3 1/3 + 5 + 2 2/3 = 11
7 0
3 years ago
Read 2 more answers
A positive number multiplied by a negative number will result in a
schepotkina [342]

Answer:

Negative

Step-by-step explanation:

When you multiply a negative number by a positive number then the product is always negative.

8 0
3 years ago
How many odd numbers are there between twenty and forty?
inna [77]

Answer:

Total 10

Step-by-step explanation:

21. 23, 25, 27, 29, 31 , 33, 35, 37, 39.

hope this helps you

5 0
3 years ago
Please help I'm very confused and frustrated.
Ray Of Light [21]

Step-by-step explanation:

-36.8 + 9.2(2). [as the value of x is 2]

-36.8 + 18.4

= - 18.4 [as the number with the

Negative sign is greater]

7 0
3 years ago
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