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3 years ago

Trigonometri odevlerin islemi

Mathematics

2 answers:

Leokris [45]3 years ago

4 0

Answer: get a calculator from wish.com (very good website)

Step-by-step explanation: you do If \displaystyle x+y+z=\pix+y+z=π prove the trigonometric identity

\displaystyle cot{\frac{x}{2}}+cot{\frac{y}{2}}+cotg\frac{z}{2}=cot{\frac{x}{2}}cot{\frac{y}{2}}cot{\frac{z}{2}}cot

+cot

+cotg

=cot

cot

WITCHER [35]3 years ago

3 0

Answer: sincostan triggy

Step-by-step explanation:

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Help needed asap !!!!!!

Zinaida [17]

Answer:

b)0, yes

Step-by-step explanation:

Given:

Vectors (4,8) . (6,-3)

Finding inner product of vectors:

= 4x6 + 8x-3

=24-24

Now to check the angle between them using formula a.b=|a|.|b|cosθ

|a|= $\sqrt{4^{2} +8^{2} } \\\sqrt{16+64}$

=8.9

|b|= $\sqrt{6^{2} +(-3)^{2} } \\\sqrt{36+9}$

=6.7

Putting values of a.b=0 and |a|=8.9, |b|=6.7 in a.b=|a|.|b|cosθ we get,

0= 8.9(6.7)cosθ

cosθ =0

θ=90 degrees

Hence the two vectors are perpendicular !

7 0

4 years ago

Find the average rate of change over the interval 7 less than or equal to X less than or equal to 10, of the function defined by

Svetradugi [14.3K]

Answer:

B. 17

Step-by-step explanation:

The average rate of change is:

m_avg = (y₂ − y₁) / (x₂ − x₁)

m_avg = (100 − 49) / (10 − 7)

m_avg = 17

7 0

4 years ago

A 5-pint bottle of oil costs $9.20. What is the unit price for 1 pint of oil?

OLEGan [10]

Answer:

$3.20, help this helps. lmk if it doesn't help

3 0

3 years ago

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What is 0.65 of $300

lorasvet [3.4K]

Answer:

$195

Step-by-step explanation:

Times 300 by 0.65

=$195

5 0

3 years ago

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Dafna11 [192]

Answer:

the last one Denise, is the only one that is true

Step-by-step explanation:

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3 years ago

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