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1 and 9 / 16 - 0.16 × 1 / 8 of 2 times; 3 times - 64 + 3 times 125-3 times 729
1 and 9 / 16 under root sign - 0.16 × 2 times under root sign 1 = √ (25 / 16) - 0.4 × 1 / 8 = 5 / 4-1 / 20 = 6 / 5
Under the third root sign - 64 + 3 times root sign 125 - 3 times root sign 729 = - 4 + 5 - 7 = - 6
How much is 37 / 64 of triple root minus 1
Three times the root of 64 minus 1
=Triple root - 27 / 64
=-3/4
(1 / 4, 80-20) - (6 times, 1 / 9, 1-8 times, 5 / 4)
The title should be:
(1 / 4 / 80-20) - (6 * 1 / 9-8 * 5 / 4)
=(root 5-2 root 5) - (6 * 1 / 3-8 * 2 / 5)
=-Root no.5-5
=3 * Radix 5 - 2
(root 9 / 2-root 8) * root 6 Good people live a safe life!
(root 9 / 2-root 8) * root 6
=(3 / 2 root sign 2-2 root sign 2) * root sign 6
=-1 / 2 root 2 * root 6
=-Radical 3
Root 18 / root 8 * root 27 / 2
Original formula = 3 times root number 2 / 2 times root number 2 × 3 times root number 3 / root number 2
=(9 times root number 6) / 4
Mathematical problem verification: root 8 + root 7 is greater than root 5 + root 10
1. (root 8 + root 7) square = 8 + 7 + 2 times root 56 = 15 + 4 times root 14
2. (root number 5 + root 10) square = 5 + 10 + 2 times root 50 = 15 + 10 times root 2
3. (2 times root 14) square = 4 * 14 = 56
4. (5 times root 2) square = 25 * 2 = 50
5. 56) 50 8 + roots 7 were greater than 5 + 10 roots
How is root 7 minus root 24?
I don't know what the landlord wants to figure out at last? Simplify or?
Right?
= under root sign (7-2 √ 6)
= under root sign (1 + 6-2 √ 1 * 6)
= square under root sign [(√ 6-1)]
＝√6－1
How to prove the sine square + cosine square of the same angle = 1
It is proved that the angle between any point on the number axis and the X axis is a
sina=y/r
cosa=x/r
sin²a+cos²a
=y²/r²+x²/r²
=(y²+x²)/r²
=r²/r²
=1
What does the square of the sine of an angle have to do with the cosine of twice the angle?
cos2α=1-2sin²α
Why is an angle equal to the other angle + 90?, and its sine is equal to the cosine of the other angle
Induction formula
sin(90+a)=cosa
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