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CBSE Class 11 Science Mathematics Free Doubts and Solutions

CBSE - XI Science - Mathematics

Pls solve.

qsnImg
Asked by pb_ckt 23rd May 2019, 3:44 PM
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CBSE - XI Science - Mathematics

cos cubed x sin to the power of 2 x end exponent=sum from x equals 0 to n ofa subscript rsin(rx), for all x element of R,

the find n, a1 and a2

 

Asked by aahnik.mohanty 22nd May 2019, 10:15 PM
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CBSE - XI Science - Mathematics

tan beta equals 2 sin alpha sin gamma cos e c left parenthesis alpha plus gamma right parenthesis comma space t h e n space c o t alpha space space c o t beta space space c o t gamma space a r e space i n _ _ _ _ _ ?
A P comma space G P comma space H P space o r space n o n e ?

Asked by aahnik.mohanty 22nd May 2019, 10:12 PM
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CBSE - XI Science - Mathematics

1 plus sin x plus
sin squared x plus sin cubed x-------------+infinity=4+2 V 3 and 0, then x=?

 

Asked by aahnik.mohanty 22nd May 2019, 10:08 PM
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CBSE - XI Science - Mathematics

Differentiate Log(Sin x).

Asked by pb_ckt 22nd May 2019, 10:20 AM
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CBSE - XI Science - Mathematics - Sets

|2x-1|/|x-1|>2  

Asked by msmamtasingh48 20th May 2019, 8:49 PM
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CBSE - XI Science - Mathematics

sin A/2*sinB/2*sinC/2 less or equal than 8

Asked by aahnik.mohanty 20th May 2019, 12:56 PM
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CBSE - XI Science - Mathematics

ABC are angles of a triangle, Prove that

sin squared fraction numerator A plus over denominator 2 end fraction sin squared B over 2 plus sin squared c over 2
equals= 1-2sinA/2*sinB/2*sinC/2

Asked by aahnik.mohanty 20th May 2019, 12:52 PM
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CBSE - XI Science - Mathematics

What will be the answer for this question?

qsnImg
Asked by dineshchem108 20th May 2019, 11:34 AM
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CBSE - XI Science - Mathematics

If z lies on the circle |z-1| = 1, then fraction numerator z minus 2 over denominator z end fraction is 

purely real

purely imaginary

positive real

none of these

Asked by akashkumar42620 4th May 2019, 9:46 AM
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