Sagot :
A=1/4 [(-2+(-3)]² -(-2-(-3))²]
=1/4[(-2-3)²-(-2+3)²]
=1/4[(-5)²-(1)²]
=1/4(25-1)
=1/4*24
=6
=1/4[(-2-3)²-(-2+3)²]
=1/4[(-5)²-(1)²]
=1/4(25-1)
=1/4*24
=6
A = 1/4[(-2+(-3)²-(-2-(-3))²]
=1/4[(-2-3)²-(-2+3)²]
=1/4[(-5)²-(1)²]
=1/4(25-1)
=1/4(24)
=6
=1/4[(-2-3)²-(-2+3)²]
=1/4[(-5)²-(1)²]
=1/4(25-1)
=1/4(24)
=6