Answer / ankur satasiya

because it has two i/p and one o/p .
using three terminal we can simply make a triangle .
so..........

Answer / jagdish hatwar

The amplifier is denoted by the trigular symbol. So that
the Differential ampllifeir is denoted by the triangul

Answer / find it

it has 2 inputs and1output

Answer / mahadev pawase

As it has 2 inputs & 1 output & o/p is wrt 2-i/ps,now a
block with minimum(sufficient) area producing 1-o/p
corresponding to 2 i/ps must be triangle with o/p at its
vertex .It shows above picture with area as triange.
It is the standard symbol for OPAMP IC and it is used all
over the world.

Answer / rehan

It has two inputs i.e inverting and non-inverting
terminal,and 1 output.so the shape is a triangular one.

Answer / louis

its simple mainly op amp are used in ic hence endeaver is
to reduce size, so to accomodate ckt having 2 inputs and
one output the better arrangement comes out to be
triangular than any other shape...

Answer / guest

becaz it is differential amplifier

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