Question

from a point p on the ground the angle of elevation of the top of a 10 metre tall building is 30 degree a flag is hoisted at the top of a building at the angle of elevation of the top of the flagstaff from p is 45 find the length of the flagstaff in the distance of the building from the point p u may take root 3 AS 1.732

Find DY by DX if Y is equal to log x power kcosx

 

Hbse math

• In a triangle ABC , D, E, F are respectively the mid points of sides AB, BC, AC. Show that triangle ABC is divided in to four congruent Triangle by joining D, E, F
  

In a triangle ABC , D, E, F are respectively the mid points of sides AB, BC, AC. Show that triangle ABC is divided in to four congruent Triangle by joining D, E, F

Add and subtract
(1)m-n,m n
(2)mn 5-2, mn 3

 tan^-1 1-sinx^1/2÷1 sinx^1/2  integrate

 tan^-1 1-sinx^1/2÷1 sinx^1/2  integrate

 tan^-1 1-sinx^1/2÷1 sinx^1/2  integrate

 tan^-1 1-sinx^1/2÷1 sinx^1/2  integrate

How came ∆opx congruent ∆oqx

How came ∆opx congruent ∆oqx

How is this

A piggy bank contains hundred 50p.coin,fifty ₹ 1 coins, twenty ₹ 2 coins and ten ₹ 5 coins . If it is equally likely that one of the coins will fall out , when the bank is turned upside down . What is the probability that the coin ..
(a) will be a 50p coin,
(b) will not be a ₹ 5 coins.