4) Tính diện tích hình phẳng giới hạn bởi 4 đường sau: y = 2௫ ; y = 3 − x; x = 0; y =

0. (chú ý hình cần tính là hình xung quanh phải gồm 4 đường trên)

y=3 Δπ≅⇒⇔⊕→Δβββ

Step-by-step explanation:

calculator

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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