If x sin² 60° – (3 / 2) sec 60° tan² 30°

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If x sin² 60° – (3 / 2) sec 60° tan² 30° + (4 / 5) sin² 45° tan² 60° = 0 then x is

⇒		3x	-	3	× 2 ×	1	+		4	×	1	× 3 = 0
		4		2		3			5		2

⇒		3x	- 1 +	6	= 0
		4		5

⇒		3x	= 1 -	6	=	5 - 6	=		- 1
		4		5		5			5

⇒ x = -		1	×	4	=	- 4
		5		3		15