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" i) "(4a+2b)^(2)-(4a-2b)^(2)...

" i) "(4a+2b)^(2)-(4a-2b)^(2)

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Evaluate : (i) ((a)/(2b)+(2b)/(a))^(2)-((a)/(2b)-(2b)/(a))^(2)-4 (ii) (4a+3b)^(2)-(4a-3b)^(2)+48ab

Simplify (4a+2b)^(3)+(4a-2b)^(3) .

Simplify (4a+2b)^(3)+(4a-2b)^(3) .

If : sin theta = (a^(2)-b^(2))/(a^(2)+b^(2)), "then" : cot theta= A) (4a^(2)b^(2))/(a^(2) -b^(2)) B) (a^(2) + b^(2))/(a^(2) - b^(2)) C) (4a^(2)b^(2))/(a^(2) + b^(2)) D)none of these.

If a sec theta=1-b tan theta and a^(2)sec^(2)theta=5+b^(2)tan^(2)theta then (i)a^(2)b^(2)-4a^(2)=9b^(2)( ii) a^(2)b^(2)+4a^(2)=9b^(2) (iii) a^(2)b^(2)+9b^(2)=4a^(2)( iv )a^(2)b^(2)+9b^(2)=5a^(2)

Factorise : (a^(2) + b^(2) - 4c^(2))^(2) -4a^(2)b^(2)

(3a^(2)b)xx(4a^(2)b)xx(-2)

If two distnct chords of the circle x^(2)+y^(2)-2x-4y=0 drawn from the point P(a,b) are bisected by y-axis then a) (b+2)^(2)>4ab)(b-2)^(2)>4ac)(b-2)^(2)>2ad)(b+2)^(2)>a

The factors of 8a^(3)+b^(3)-6ab+1 are (a) (2a+b-1)(4a^(2)+b^(2)+1-3ab-2a) (b) (2a-b+1)(4a^(2)+b^(2)-4ab+1-2a+b)(2a+b+1)(4a^(2)+b^(2)+1-2ab-b-2a) (d) (2a-1+b)(4a^(2)+1-4a-b-2ab)