What about log2 and log5? How about this? The index is 3. I don't know how to write it What is the relationship between the sum of (log2 3) 1 and (log5 3) 1 and 2

log2 3=lg3/lg2
log5 3=lg3/lg5
1/(log2 3)+1/(log5 3)=(lg2+lg5)/lg3=lg(2*5)/lg3=lg10/lg3=1/lg3
It doesn't seem to have anything to do with 2

X-2 power image with 1 / 2 as the base x + 1 logarithm image X-1 absolute value image 2 x + 1 power image

LZ look at the image of X to the power of - 2, the image of logarithm of X + 1 with 1 / 2 as the base, the image of the absolute value of X-1 & nbsp; the image of X + 1 power of 2

The numerator and denominator of the right wrong 1 fraction are two adjacent natural numbers, which must be the simplest fraction

Two adjacent natural numbers must be coprime numbers
The fraction of Coprime of numerator and denominator must be the simplest fraction
So this statement is correct

As long as it's plural, add "the" before it

No, you've misunderstood it. The definite article is used like this: it means the person or thing mentioned above morning.The Dictionary is very good, The sun, the moon, the sky, the earth, the world, the sun, the moon, the moon, the sky, the sky, the earth, the world, the sun, the moon, the moon, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the sky, the, The working class the proletariat is often used in front of proper nouns containing common nouns or adjectives, The people's Republic of China, the United States, the times, newspapers and magazines, etc Summer Palace, the peace hotel, the British Museum, is used in front of nouns indicating orientation, such as the east the south west the middle the Far East on the left, but there is no article in front of musical instruments in pinyin, such as play the piano play the violin play erhu, When we got there, the Lius were waiting for us, The poor the rich the living the young, the wonted the oppressed the beautiful, used before the superlative or ordinal of adjectives. The first thing they want to do is to take a hot bath

Given that the angle between vectors a and B is 120 ° and a = b = 4, then b * (2a + b) =? A + B =? 2a-b) =?

Vector B · (2a + b) = B · 2A + B · B
=2|a|*|b|*cos120°+|b|^2
=2*4*4*(-1/2)+4^2
=-16+16
=0.
|a+b|^2=(a+b)^2=|a|^2+2a·b+|b|^2
=4^2+2*4*4*cos120°+4^2
=16+32*(-1/2)+16
=16,
∴|a+b|=4,
|2a-b|^2=4|a|^2-4a·b+|b|^2
=4*4^2-4|a|*|b|*cos120°+4^2
=64-4*4*4*(-1/2)+16
=80+32
=112.
∴|2a-b|=4√7.

English verb phrases
How to understand the phrase "Verb + noun + preposition"?
Can we understand that verb plus noun is a structure of less than object, and then preposition with object?

In modern English, prepositions or adverbs are often placed after a verb in order to express more meaning. For example: give away, give up, look after, take care of each verb phrase is and object, that is, need to have an object

In △ ABC, ab = AC, ∠ BAC = 120 °, points D and F are the midpoint of AB and AC respectively, ed ⊥ AB and GF ⊥ AC. if BC = 15cm, calculate the length of eg

As shown in the figure, connecting AE and Ag, ∵ D is the midpoint of AB, ed ⊥ AB, ∵ EB = EA, ∵ Abe is an isosceles triangle, and ∵ B = 180 °− 120 ° 2 = 30 °, and ∵ BAE = 30 °, and ∵ AEG = 60 °. The same principle can be proved: ∵ age = 60 °, and ∵ AEG is an equilateral triangle, ∵ AE = eg = AG, and ∵ AE = be, Ag = GC, ∵

These are a dictionary in the desk

These are dictionaries in the desk.

In triangle ABC, cosa * tanb * COSC

In a triangle, SINB must be greater than 0, so the original inequality can be equivalent to cosa * CoSb * COSC0; if it is a right triangle, then the above formula should be equal to 0; if it is an obtuse triangle, then the above formula should be equal to 0

Where do you put your clothes?

In the wardrobe.

What about log2 and log5? How about this? The index is 3. I don't know how to write it What is the relationship between the sum of (log2 3) 1 and (log5 3) 1 and 2