prove sin theta-2sin cube theta/2cos cube theta-cos theta=tan theta
If cosec theta + cot theta= p Prove that cos theta = p2-1 by p2+1
solve (cosec theta-sin theta)(sec theta - cos theta) = 1tan theta + cot theta
Given that sinθ + 2cosθ = 1, then prove that 2sinθ – cosθ = 2.
(1+ cot A - cosec A) (1+ tan A + sec A) = 2
cos45 degree divided by sec 30 degree plus cosec 30 degree .... hw do u solve it in simple way ... nd hw do v rationalise d denominator
Prove that:- sin6 theta + cos6 theta = 1-3sin2theta.cos2theta
prove that tan+sec-1/tan-sec+1 =1+sin/cos
ANSWER)
cos (3A) = cos(2A + A) = cos (2A) cos (A) - sin(2A) sin(A) = [ 2cos^2(A) - 1 ] cos (A) - (2 sin A cos A )sin A = 2cos^3(A) - cos A - 2sin^2(A) cos A = 2cos^3(A) - cos A - 2( 1 - cos^2(A)) cos A = 2cos^3(A) - cos A - 2cos A + 2cos^3(A) = 4cos^3(A) - 3cos A
If Sin + Cos = p and Sec + Cosec = q, show that q(p2 – 1) = 2p.
prove that cotA + cosecA -1/ cotA - CosecA + 1 = 1 + cosA - sinA
if A and b are acute angles such that cosA=cosB, then show that ANGLEA=ANGLEB.
if 1+ sin2A = 3sinAcosA, then show that tanA =1or 1/2. plzzzzz urgen 2mrow is my exam
given that sin theta + 2 cos theta = 1 , then prove that 2 sin theta -cos theta = 2
if sin 3 theta = cos ( theta-6 degree) where 3 theta and ( theta-6 degree) both r acute angle then what is the value of theta
prove sin theta-2sin cube theta/2cos cube theta-cos theta=tan theta
If cosec theta + cot theta= p Prove that cos theta = p2-1 by p2+1
solve (cosec theta-sin theta)(sec theta - cos theta) = 1tan theta + cot theta
Given that sinθ + 2cosθ = 1, then prove that 2sinθ – cosθ = 2.
(1+ cot A - cosec A) (1+ tan A + sec A) = 2
cos45 degree divided by sec 30 degree plus cosec 30 degree .... hw do u solve it in simple way ... nd hw do v rationalise d denominator
Prove that:- sin6 theta + cos6 theta = 1-3sin2theta.cos2theta
prove that tan+sec-1/tan-sec+1 =1+sin/cos
Prove that Cos3A = 4cos^3A - 3cosA ?
ANSWER)
cos (3A)
= cos(2A + A)
= cos (2A) cos (A) - sin(2A) sin(A)
= [ 2cos^2(A) - 1 ] cos (A) - (2 sin A cos A )sin A
= 2cos^3(A) - cos A - 2sin^2(A) cos A
= 2cos^3(A) - cos A - 2( 1 - cos^2(A)) cos A
= 2cos^3(A) - cos A - 2cos A + 2cos^3(A)
= 4cos^3(A) - 3cos A
prove that cotA + cosecA -1/ cotA - CosecA + 1 = 1 + cosA - sinA
if A and b are acute angles such that cosA=cosB, then show that ANGLEA=ANGLEB.
if 1+ sin2A = 3sinAcosA, then show that tanA =1or 1/2. plzzzzz urgen 2mrow is my exam
given that sin theta + 2 cos theta = 1 , then prove that 2 sin theta -cos theta = 2
if sin 3 theta = cos ( theta-6 degree) where 3 theta and ( theta-6 degree) both r acute angle then what is the value of theta