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Solve (i) 2 sin x+ tan x=0 (ii)7 cos^(2) theta+3 sin^(2) theta=4 (iii) cos x + sec x=2 (iv)Solve tan x + tan 2x+tan 3x=0 (v) sin x sin 3x=1//2 (vi)cot(pi)/(3) cos (vii)Solve sec x-1=sqrt(2-1)tan x 2nx=sqrt(3)

Answer»


Answer :(i) `npi, 2(3k+1)(pi)/(3)`
(ii) `2npipx(pi)/(3),2npipm(2pi)/(3)`
(iii)`2npi`
(IV)`(npi)/(3),npipmtan^(-1)(1)/SQRT(2)`
(v)`(2n+1)(pi)/(4),(6kpm1)(pi)/(6)`
(VI)`x=m pm 1//6, m in I`
(vii)`2npi+(pi)/(4)`


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