State and prove the necessary and sufficient condition F(X) to be R.I. and define F(X) to be R.I.

Hamane is video me bataye hai ki prove that State and prove the necessary and sufficient condition F(X) to be R.I. and define F(X) to be R.I.

State and prove the necessary and sufficient condition F(X) to be R.I. and define F(X) to be R.I.,define function F(X) to be R.I.,