cos .((pi)/(4)-x) cos ((pi)/(4)-y) –sin ...

`cos .((pi)/(4)-x) cos ((pi)/(4)-y) –sin ((pi)/(4) –x) sin ((pi)/(4)-y) =sin (x+y)`

त्रिकोणमितीय फलन
NCERT HINDI|Exercise प्रश्नावली 3.4|9 Videos
त्रिकोणमितीय फलन
NCERT HINDI|Exercise अध्याय 3 पर विविध प्रश्नावली|10 Videos
त्रिकोणमितीय फलन
NCERT HINDI|Exercise प्रश्नावली 3.2|10 Videos
गणितीय विवेचन
NCERT HINDI|Exercise अध्याय 14 पर विविध प्रश्नावली|7 Videos
त्रिविमीय ज्यामिति का परिचय
NCERT HINDI|Exercise अध्याय 12 पर विविध प्रश्नावली|6 Videos

2sin^(2)""(3pi)/(4)+2cos^(2)""(pi)/(4)+2sec^(2)""(pi)/(3)=10
Text Solution
|
मान ज्ञात कीजिए: (i) sin 75^(@) (ii) tan 15^(@)
Text Solution
|
cos .((pi)/(4)-x) cos ((pi)/(4)-y) –sin ((pi)/(4) –x) sin ((pi)/(4)-y)...
Text Solution
|
(tan((pi)/(4)+x))/(tan((pi)/(4)-x))=((1+tanx)/(1-tan x))^(2)
Text Solution
|
(cos (pi+x) cos (-x))/(sin (pi-x) cos ((pi)/(2)+x))=cot^(2)x
Text Solution
|
cos ((3pi)/(2)+x)cos (2pi+x)[cot ((3pi)/(2)-x)+cot (2pi+x)]=1
Text Solution
|
sin(n+1)x sin(n+2)x+ cos (n+1)x cos (n+2)x=cos x
Text Solution
|
cos((3pi)/(4)+x)-cos ((3pi)/(4)-x)=-sqrt(2) sin x
Text Solution
|
sin^(2)6x-sin^(2)4x=sin2x sin 10x
Text Solution
|
cos^(2) 2x - cos^(2) 6x = sin 4 x sin 8x
Text Solution
|
sin2 x+2 sin 4x + sin 6x=4 cos^(2) x sin 4x
Text Solution
|
cot 4x (sin 5x + sin 3x)=cot x (sin 5x-sin 3x)
Text Solution
|
(cos 9x-cos 5x)/(sin 17x-sin 3x)=-(sin2x)/(cos 10x)
Text Solution
|
(sin 5x+ sin 3x)/(cos 5x+ cos 3x)=tan 4x
Text Solution
|
(sin x- sin y)/(cos x+ cos y)=tan ""(x-y)/(2)
Text Solution
|
(sin x+sin 3x)/(cos x+ cos 3x)=tan 2x
Text Solution
|
(sin x- sin 3x)/(sin^(2) x- cos^(2)x)=2 sin x
Text Solution
|
(cos 4x+ cos 3x+ cos2x)/(sin 4x+ sin 3x+ sin 2x)=cot 3x
Text Solution
|
cot x cot 2x -cot 2x cot 3x -cot 3x cot x=1
Text Solution
|
tan 4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)
Text Solution
|