If tan245° – cos230° = x sin 45° cos 45° then x = ?

Given: tan245° – cos230° = x sin 45° cos 45°

(1)2 – (√3/2)2 = x × (1/√2) × (1/√2)


1 – (3/4) = x × (1/2)


x/2 = 1 –(3/4)


x/2 = 1/4


x = 2/4


x = 1/2

25