Question : Evaluate the following. $\sin 25° \sin 65° – \cos 25° \cos 65°$
Option 1: 4
Option 2: 1
Option 3: 0
Option 4: 40
Latest: SSC CGL Tier 1 Result 2024 Out | SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL Tier 1 Scorecard 2024 Released | SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: 0
Solution : $\sin 25° \sin 65° - \cos 25° \cos 65°$ $=\sin 25° \sin(90° - 25°) - \cos 25° \cos(90° - 25°)$ $=\sin 25° \cos 25° - \cos 25° \sin 25°$ $=0$ Hence, the correct answer is 0.
Candidates can download this ebook to know all about SSC CGL.
Result | Eligibility | Application | Selection Process | Preparation Tips | Admit Card | Answer Key
Question : Evaluate the following. $\sin 25^{\circ} \sin 65^{\circ}-\cos 25^{\circ} \cos 65^{\circ}$.
Question : Find the value of the given expression. 2 + cos 49°cos 41° – sin 49° sin 41°
Question : The value of $(\cos 53° – \sin 37°)$ is:
Question : Evaluate the expression: $\frac{\sin ^2 63^{\circ}+\sin ^2 27^{\circ}}{\cos ^2 17^{\circ}+\cos ^2 73^{\circ}}$
Question : The value of $\frac{\sin A}{1+\cos A}+\frac{\sin A}{1-\cos A}$ is $(0°<A<90°)$:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile