3sin‌θ+4‌cos‌θ=3 On squaring both sides, we get 79sin‌2θ+16cos2θ+24sin‌θ‌cos‌θ=9 ‌⇒9+7cos2θ+24sin‌θ‌cos‌θ=9 ‌⇒cos‌θ(7‌cos‌θ+24sin‌θ)=0 ‌⇒cos‌θ≠0 ‌‌‌θ≠(2n+1)‌
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2
‌‌ and ‌7‌cos‌θ+24sin‌θ=0 ‌tan‌θ=‌
