Question
Find the value of x, when : $\log _2\left(x^2-9\right)=4$
✓
Answer
$\pm 5$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The perimeter of a right triangle is 60 cm and its hypotenuse is 25 cm. Find the area of the triangle.
Using the standard formulae, expand:
$(x+y)(x-y)\left(x^2+y^2\right)$
→$(x+y)(x-y)\left(x^2+y^2\right)$
Evaluate the following$: \tan(78^\circ + \theta ) +\operatorname{cosec}(42^\circ + \theta ) - \cot(12^\circ - \theta ) - \sec(48^\circ - \theta )$
→Find angle $ 'A\ '$ if :
→Find the median weight for the following data :