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Recent questions and answers in Class XI Maths
0
votes
0
answers
Find all numbers that verify the system:
asked
Nov 18, 2019
in
Class XI Maths
by
Erza
(
15
points)
0
votes
0
answers
asin2x +bcos2x=c prove that cot2x=c-a/b-c
asked
Oct 26, 2019
in
Class XI Maths
by
mkmalla
(
15
points)
0
votes
0
answers
find the value of tan 2a
asked
Sep 19, 2019
in
Class XI Maths
by
Ashley
(
15
points)
0
votes
0
answers
B={x/x^2=x,xbelongs to R
asked
Jul 13, 2019
in
Class XI Maths
by
Rohan Jain
(
15
points)
0
votes
0
answers
Solve the inequality
asked
Jul 6, 2019
in
Class XI Maths
by
Aman rr
(
15
points)
0
votes
0
answers
Find the term independent of x in (2x^1/2-3÷x^1/3)^20
asked
Jun 16, 2019
in
Class XI Maths
by
Sheikh rashid
(
15
points)
0
votes
0
answers
(1+i/1+i)100
asked
Jun 15, 2019
in
Class XI Maths
by
Nilesh
(
15
points)
0
votes
2
answers
If x = sec ϕ - tanϕ and y = cosec ϕ + cot ϕ then show that xy + x -y +1=0.
answered
Jun 5, 2019
in
Class XI Maths
by
lab
Basic
(
36
points)
trigonometric functions
0
votes
2
answers
The value of cos 12° + cos 84° + cos 156° + cos 132° is
answered
Jun 3, 2019
in
Class XI Maths
by
lab
Basic
(
36
points)
trigonometric functions
0
votes
2
answers
If sin(θ + α) = a and sin(θ + β) = b , then prove that cos2(α – β) – 4abcos(α – β) = 1-2a2 -2b2.
answered
May 31, 2019
in
Class XI Maths
by
lab
Basic
(
36
points)
trigonometric functions
0
votes
2
answers
If (2 sin α)/(1 + cos α + sin α) = y, then prove that (1 - cos α + sin α)/(1 + sin α) is also equal to y.
answered
May 31, 2019
in
Class XI Maths
by
lab
Basic
(
36
points)
trigonometric functions
0
votes
0
answers
If Sin A=1/√10 and Sin B=1/√5,where A and B are positive acute angles, then A+B=?
asked
May 24, 2019
in
Class XI Maths
by
Riya1023
Basic
(
31
points)
0
votes
0
answers
convert the given frequency distribution into a continuous grouped frequency distribution in which intervals would 153.5 and 157.5 be included.
asked
Apr 28, 2019
in
Class XI Maths
by
sekgobela walter
(
10
points)
statistics and probability.
0
votes
0
answers
Prove that √1-cosx/1+cos2x
asked
Apr 24, 2019
in
Class XI Maths
by
Gaius Iliya
(
10
points)
0
votes
0
answers
If the order of matrix A is 4*3 order of matrix B is 4*5 and order of matrix C is 7*3 then order of matrix (A’*B’)*C’ is
asked
Apr 14, 2019
in
Class XI Maths
by
Kira
(
15
points)
0
votes
0
answers
Find the coefficient of x⁴ in the expansion of (1+x-2x²)^7
asked
Mar 23, 2019
in
Class XI Maths
by
20Aryan02
(
15
points)
binomial theorem
+2
votes
0
answers
If (a+b)=m,a2+b2=n,a3+b3=p3 how can i prove: m3+2p3=3mn
asked
Feb 24, 2019
in
Class XI Maths
by
S
(
17
points)
0
votes
0
answers
Sin(cos^3/5+sin^5/13)=63/65
asked
Feb 8, 2019
in
Class XI Maths
by
विजय
(
15
points)
0
votes
0
answers
7power2n+2the whole power 3n-3×3the whole power n-1 is divisible by 25
asked
Dec 15, 2018
in
Class XI Maths
by
Yagngna
(
16
points)
+1
vote
1
answer
Prove that: log 2 + 2 log 5 - log 3 - 2 log 7 = log 50/147.
answered
Dec 8, 2018
in
Class XI Maths
by
Amresh
Pro
(
116
points)
explain it properly..
plzzz answer fast tmrw i have pre board exam
answer it correctly
ask at least from guides
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