Keyword Analysis & Research: what does the backwards e mean in math

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does the backwards e mean in math	0.51	0.1	6694	76	38
what	0.83	0.7	2613	55	4
does	0.72	0.6	4642	44	4
the	1.51	1	3127	7	3
backwards	1.41	0.7	3975	70	9
e	0.48	0.2	9166	1	1
mean	1.62	0.6	3035	7	4
in	1.06	0.8	7652	39	2
math	1.88	0.9	9725	34	4

Keyword	CPC	PCC	Volume	Score
what does the backwards e mean in math	0.59	0.9	4641	36
what does a backwards capital e mean in math	1.79	0.6	8768	56
what does backwards e mean in discrete math	0.73	0.8	5866	28
what does the backwards e symbol mean in math	0.07	0.1	7583	43
backwards e meaning in math	1.51	0.1	478	84
backwards capital e in math	1.9	0.3	2742	11
what does backwards e mean in math	0.83	0.7	5651	67
backwards e in math meaning	1.45	0.4	3534	86
backwards capital e symbol	0.24	0.4	5082	97
what does a backwards e mean	1.99	0.2	7607	85
backwards e in math symbol	1.23	0.1	389	89
what does capital e mean in math	1.15	0.6	5265	86