The length of the common chord of two intersecting circles is 24 cm. If the diameter of the circles are 30 cm and 26 cm, then the distance between the center (in cm) is 

A ladder rests against a wall at a height of 10 meters. If the ladder makes 30° along the ground. Find the distance from the wall of the foot of the ladder.

If 2sinθ+ 15 cos²θ=7, 0°˂θ˂90°, then what is the value of $$ {3-tanθ\over 2+tanθ}$$?

Monu and Kitu entered into a partnership for a year in which Monu invested Rs 120000 and Kitu invested Rs 70000. After 4 months, Monu invested Rs 80000 more whereas after 5 months, Kitu invested Rs 30000 more. When two months were left Sweety also joined investing Rs 400000 as her contribution. If the profit for the year was 12.5% of 1572000, find the share of Monu, Kitu and Sweety.

If (a-b)=-3 , (b-c)=5 and (c-a)=-2, then the value of $$ {a^{3}+b^{3}+c^{3}-3abc\over a+b+c}$$.

If $$ {y\over x-z}={y+x\over z}={x\over y}$$ the find x:y:z is?

If the score of five students is 8,7,9,16,25, then their mean deviation will be.

If Tan⁴x – Tan²x=1 then the value of Sin⁴x + Sin²x is__