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0
votes
1
answer
Which of the following Indian states does NOT share its boundaries with Nepal ?
asked
in
Geography
class9
geography
0
votes
0
answers
Why should a magnesium ribbon be cleaned before burning in air ?
asked
in
Chemistry
chemistry
class-10
0
votes
0
answers
If (sin θ + cos θ) / (sin θ-cos θ) =3, then what is the value of sin⁴ θ -cos⁴ θ?
asked
maths
0
votes
1
answer
. If the sum of first m terms of an A.P. is the same as the sum of its first n terms
asked
class-10
maths
0
votes
1
answer
Speed of a boat in still water is 15 km/h. It goes 30 km upstream
asked
class-10
maths
0
votes
1
answer
Find the sum of n terms of the series
asked
class-10
0
votes
1
answer
If mth term of an A.P. is 1/ n and nth term is 1 /m , then find the sum of its first mn terms.
asked
class-10
0
votes
1
answer
Prove that the parallelogram circumscribing a circle is a rhombus.
asked
class-10
maths
0
votes
1
answer
Prove that the angle between the two tangents drawn from an external point to
asked
class-10
0
votes
3
answers
In Fig. 10.13, XY and X′Y′ are two parallel tangents to a circle with centr
asked
class-10
0
votes
0
answers
consider a heavenly body with has a mass twice that of the earth and radius thrice that of the
asked
physics
gravitation
0
votes
1
answer
Prove that (1+cotsqA)TanA/SecsqA=CotA
asked
class-10
trigonometry
0
votes
1
answer
Prove that Prove that root (1-cosA/1+cosA)=cosec A - Cot A
asked
class-10
trigonometry
0
votes
1
answer
Prove that 1-sinø/cosø=sinø/1+cosø
asked
class-10
trigonometry
0
votes
2
answers
Given that sinθ + 2cosθ = 1, then prove that 2sinθ – cosθ = 2.
asked
class-10
trigonometry
0
votes
2
answers
If 1 + sin2 θ = 3sinθ cosθ , then prove that tanθ = 1 or 1 2 .
asked
class-10
trigonometry
0
votes
1
answer
What is a balanced chemical equation ? Why should chemical equations be balanced ?
asked
in
Chemistry
chemistry
class-10
balance
0
votes
1
answer
What happens when dilute hydrochloric acid is added to iron filings ? Tick the correct answer.
asked
in
Chemistry
class-10
chemistry
0
votes
1
answer
The above reaction is an example of a : (a) combination reaction (b) double displacement reaction
asked
in
Chemistry
class-10
chemistry
balance
0
votes
1
answer
(a) Lead is getting reduced (b) Carbon dioxide is getting oxidised (c) Carbon is getting oxidised
asked
in
Chemistry
class-10
chemistry
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