MCQ
If $\tan \theta=\frac{3}{4}$, then $\cos ^2 \theta-\sin ^2 \theta=$
- ✓$\frac{7}{25}$
- B1
- C$\frac{-7}{25}$
- D$\frac{4}{25}$
✓
Answer
Correct option: A.
$\frac{7}{25}$
A
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
If a pair of linear equations in two variables is consistent, then the lines represented by two equations are
A tangent $PQ$ at a point $P$ of a circle of radius $5\ cm$ meets a line through the centre $O$ at a point $Q$ such that $OQ = 12\ cm$. Length $PQ$ is :
→The value of $k$ for which the system of equations $x + y - 4 = 0$ and $2x + ky = 3$ has no solution, is :
→If the sum of the areas of two circles with radii $r_1$ and $r_2$ is equal to the area of a circle of radius $r,$ then $\text{r}^2_{1}+\text{r}^2_{1}$
→In the figure, if PQR is the tangent to a circle at Q whose centre is O, AB is a chord parallel to PR and $\angle\text{BQR}=70^\circ$ then $\angle\text{AQB}$ is equal to:
→If each edge of a cube is increased by $50\%$, the percentage increase in the surface area is:
→A die is thrown once. The probability of getting an odd number greater than $3$ is :
→The probability of selecting a consonant from the lecetrs of the word 'TRIANGLE' is
Find the least positive integer divisible by 20 and 24.
The perimeter of a circular field is $242m$. The area of the field is :
→