Answer:
OKAY
Step-by-step explanation:For an example the answer is 23
1) 3+2x and 4-5x ; they want the sum so ..... (3+2x)+(4-5x) .... 3+2x+4-5x ..... = -3x+7
This answer helps us figure out the sum of the complex numbers because the "i" and "x" are just simply variables so the same simplification would apply.
2) 1-3x and 2+x ; They want us to find the product or multiplication of these two binomials: (1-3x)(2+x) ... To achieve this we use the FOIL method. We get:
2+x-6x-3x^2 ... = (-3x)^2 -5x+2.
The same reasoning applies just like number 1.
4b+4<20-12b
16b<16
b<1 olur.
<u><em>İYİ DERSLER!</em></u>
Answer:
1.
Step-by-step explanation:
cos 30 = √3/2 (obtained from the 30-60-90 triangle)
sin 60 = √3/ 2 ( as above)
cot 60 = 1 / tan 60 = 1/√3 (as above)
So (cos30°+sin60°)cot60° = (√3/2 + √3/2) / √3
= 2√3/2 / √3
= √3 / √3
= 1.
