From a point on the ground, the angles of elevation of the bottom and the top of a transmission power fixed at the top of a 20m height building are 45 degree and 60 degree respectively. Find the height of the tower.
Question
Sir here is one mistake in 7th Ter exceeds the 5th term by 12
Also,
an=a (n-1)d
a7=a (7-1)d
a7=a 6d
Here written wrong sir
Also,
an=a (n-1)d
a7=a (7-1)d
a7=a 6d
Here written wrong sir
5min 
Find the difference between the number 279and that obtained on reversing its digits
Accounts Tax GST
Sept. 29, 2020, 12:15 p.m.
Answer
How to know which entry should be in debit side and credit side in all vouchers? I confused about debit side entry and credit side entry. Please Sir help me on this.
Your incert science class 10, chapter: reflection and refraction of light , Q.no.12 is wrong. Please correct the lense formula.