If 2sin²θ–5sinθcosθ+7cos²θ=1then possible values of tan θ are

The greatest value of $$ Sin^{4}θ+Cos^{4}θ $$ is:

If tan⁴θ + tan²θ = 1, then the value of cos⁴θ + cos²θ is

If cos θ = $${1\over \sqrt{10}}$$, then tan θ is equal to.

If sinθ – cosθ = 7/13 and 0⁰ < θ < 90⁰ , then the value of sinθ + cosθ is :

If 5cosθ – 12sinθ=0 then value of

The value of $$(x^{b+c})^{b-c}. (x^{c+a})^{c-a}.(x^{a+b})^{a-b}$$ when (x≠0).