Question
Solution
Largest four digit number = 9999 So when 9999 is divided by LCM of 8,12, 32 & 60 (i,e.480), remainder is 399. So when 399 is subtracted from 9999, it will be completely divided by 480 & answer will be = 9999 – 399 = 9600.
If cot2A = tan(A+6Ëš ) Â , find the value of A? Given that 2A and A+6Ëš Â are acute angles.
cot 4˚ x cot 47˚ x cot 42.3˚ x cot 43˚ x cot 47.7˚ x cot 86˚= ?
- Find the value of sin²50° + sin²40°.
- If sin (3A − 4B) = (1/2) and cos (A + B) = (√2/2), where 0° < A, B < 90°, then find the value of ‘A’.

Find the value of sin265o + sin225o + cos235o + cos255o.
...- Determine the value of :

If sec x + tan x = 11 then find secx?
Find the maximum value of 25 sin A + 11 cos A.
If sec a + tan a = 2, find the value of sin a.Â