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Kerala (English Medium)->Std 7 Questions

Total Questions 348
(i)If x is in the third quadrant, then (a)Choose the possible value of cosec x from the bracket.[-3/5, 3/5, 5/3, -5/3] (ii)Evaluate tanx-secx using the above x.
A gun weighing 10 kg fires a bullet of 30g with a velocity of 330 m/s.With what velocity does the gun recoil? What is the combined momentum of the gun and bullet before and after firing?
A ball moving with a momentum of 5kg m/s strikes against a wall at an angle of 45 and is reflected at the same angle.Calculate the change in momentum.
Prove that sin5x-2sin3x+sinx/cos5x-cosx=tanx
Find the general solution of sin6x-sin4x+sin2x=0
which is the official capital of malaysia?
what is Annayojana scheme?
art forms of tribal
What you mean by Western ghats?
Who is the governor of california?
How many Hydroelectric project in kerala ?
Health and environmental problems create by chemical pestticides
what are the reasons for the fewer modes of transport from kerala in other states?
What are tribles
"What is measurement".
Which are the rare species of animals commonly seen in the western ghads
what is westren ghats?
how do ant reproduse
what is the actual value of pie in 2*pie*r
how is a computer made