# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 276 - 284 of 1484

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## Question 276

### Question

MCQ▾The sum of and its reciprocal is

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. | Question does not provide sufficient data or is vague |

## Question 277

### Question

MCQ▾If and then = ________.

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. | All of the above |

## Question 278

### Question

MCQ▾The ratio by which divides the join of and is ________.

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. | Question does not provide sufficient data or is vague |

## Question 279

### Question

MCQ▾The sum of ‘n’ terms of an AP is . Then the nth term is

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Choice (4) | Response | |
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a. | ||

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d. | Question does not provide sufficient data or is vague |

## Question 280

### Question

MCQ▾= ________.

### Choices

Choice (4) | Response | |
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a. | 1 | |

b. | -1 | |

c. | 0 | |

d. | All of the above |

## Question 281

### Question

MCQ▾Simplify:

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Choice (4) | Response | |
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a. | ||

b. | 1 | |

c. | ||

d. | Question does not provide sufficient data or is vague |

## Question 282

### Question

MCQ▾If P = , Q = and R = then the value of is

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Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. | Question does not provide sufficient data or is vague |

## Question 283

### Question

MCQ▾Which of the following expression is a rational expression?

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Choice (4) | Response | |
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a. | ||

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d. |

## Question 284

### Question

MCQ▾The total surface area of a cylinder is 110 sq cm with height 1.5 cm. Then its volume is

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. |