Question
{ 65. If }\operatorname{sin}θ+\operatorname{sin}^2θ=1, find the value of }\operatorname{cos}^{12}θ+3\operatorname{cos}^{10}θ}{+3\operatorname{cos}^8θ+\operatorname{cos}^6θ+6\operatorname{cos}^4θ+6\operatorname{cos}^2θ+\operatorname{sin}^2θ+\operatorname{sin}θ