Pankaj Kumar Porwal
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3:53
Leçon 3 Boîte à mots ( Pronuniciation ) ( Idées méthode de français Débutant Ver. 2 Babusha Verma )
Pankaj Kumar Porwal
470 views • 9 months ago
4:07
Leçon 1 Alphabet ( Pronuniciation ) ( Idées méthode de français Débutant Ver. 2 Babusha Verma )
Pankaj Kumar Porwal
103 views • 10 months ago
6:26
Ch Light MCQ, X Science term 1
Pankaj Kumar Porwal
538 views • 2 years ago
9:05
X MCQ Science Ch 10 light
Pankaj Kumar Porwal
398 views • 2 years ago
4:07
Class X Maths MCQ Trigonometry tricks(ex 8.4 question 5 i)
Pankaj Kumar Porwal
208 views • 2 years ago
2:39
Class X Maths MCQ Trigonometry tricks(ex 8.4 question 4 iii)
Pankaj Kumar Porwal
146 views • 2 years ago
2:13
Class X Maths MCQ Trigonometry tricks(ex 8.4 question 4 iv)
Pankaj Kumar Porwal
184 views • 2 years ago
18:21
MCQ chapter 1 X Chemical Reactions and Equations
Pankaj Kumar Porwal
242 views • 2 years ago
2:19
Ex 3.3 Q 12 Prove the following:sin 2 6x−sin 2 4x=sin2x,sin10x, Maths XI
Pankaj Kumar Porwal
10K views • 2 years ago
3:26
Ex 3.3 Q 23 Maths XI , Prove that :tan4x= tanx(1−tan 2 x)/1−6tan 2 x+tan 4 x
Pankaj Kumar Porwal
585 views • 2 years ago
1:15
Ex 3.3 Q 24 cos4𝑥=1−8sin 2 𝑥 cos 2 𝑥. Maths Class XI
Pankaj Kumar Porwal
277 views • 2 years ago
5:39
Misc Ch9 Q18 XI If a and b are the roots of x 2 −3x+p=0 and c and d are roots of the equation x 2
Pankaj Kumar Porwal
1.7K views • 3 years ago
4:49
Misc Ch9 Q19 XI The ratio of the A.M and G.M of two positive numbers a and b, is m:n. Show that a:b
Pankaj Kumar Porwal
1.6K views • 3 years ago
5:21
Misc Ch9 XI Q16 If If a( 1/b+1/c),b( 1/c+1/a),c( 1/a+1/b)are in A.P., prove that a, b, c are in A.P.
Pankaj Kumar Porwal
453 views • 3 years ago
5:10
Misc Ch9 Q17 XI If a, b, c, d are in G.P, prove that (a n +b n ),(b n +c n ),(c n +d n ) are in G.P.
Pankaj Kumar Porwal
1K views • 3 years ago
3:59
Misc Ch9 Q11 XI A G.P. consists of an even number of terms. If the sum of all the terms is 5 times
Pankaj Kumar Porwal
705 views • 3 years ago
5:04
Misc Ch 9 Q10 XI The sum of three numbers in G.P. is 56. If we subtract 1,7,21 from these numbers in
Pankaj Kumar Porwal
1K views • 3 years ago
2:36
Misc Ex Ch9 XI Q9 The first term of a G.P. is 1. The sum of the third and fifth term is 90. Find the
Pankaj Kumar Porwal
760 views • 3 years ago
3:01
Misc Ex Ch 9 XI Q7 If f is a function satisfying f(x+y)=f(x)f(y) for all x,y∈N such that f(1)=3 ,
Pankaj Kumar Porwal
539 views • 3 years ago
1:49
Misc Ch 9 Q8 Maths XI The sum of some terms of a G.P. is 315,whose first term and the c ratio are 5
Pankaj Kumar Porwal
198 views • 3 years ago
2:27
Ch 11 Q17 Class IX Calculate the work required to be done to stop a car of 1500kg moving at a veloc
Pankaj Kumar Porwal
5.9K views • 3 years ago
2:06
Ch 11 Class IX Q 10 An object of mass 40kg is raised to a height of 5m above the ground what is i?
Pankaj Kumar Porwal
993 views • 3 years ago
2:08
Activity 11.16 Class IX Science Work and Energy
Pankaj Kumar Porwal
2.7K views • 3 years ago
7:41
Activity 11.15 Class IX Science Work and Energy
Pankaj Kumar Porwal
28K views • 3 years ago
3:08
Activity 11.3 Chapter 11 Class X Science CBSE Ncert
Pankaj Kumar Porwal
15K views • 3 years ago
4:07
Activity 11.1 Class X Science CBSE NCERT
Pankaj Kumar Porwal
10K views • 3 years ago
3:20
Activity 11.2 Class X Chapter 11 Science CBSE NCERT
Pankaj Kumar Porwal
4.8K views • 3 years ago
4:34
Ex 6.5 Q14 Class X The perpendicular from A on side BC of a ΔABC intersect BC at D such that DB=3CD.
Pankaj Kumar Porwal
350 views • 3 years ago
2:38
Ex 6.5 Q13 Class X D and E are points on the sides CA and CB respectively of a triangle ABC right
Pankaj Kumar Porwal
631 views • 3 years ago
4:53
Ex 6.5 Q11 Class X An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour
Pankaj Kumar Porwal
3.3K views • 3 years ago
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