Home
Class 10
MATHS
In DeltaABC right angled at C,the value ...

In `DeltaABC` right angled at C,the value of `cos(A+B)` is:

A

0

B

1

C

`(1)/(2)`

D

`(sqrt(3))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • INTRODUCTION TO TRIGONOMETRY

    OSWAAL PUBLICATION|Exercise TOPIC -1 TRIGONOMETRIC RATIOS : COMPLEMENTARY ANGLES & VALUE (VERY SHORT ANSWER TYPE QUESTIONS)|8 Videos
  • INTRODUCTION TO TRIGONOMETRY

    OSWAAL PUBLICATION|Exercise TOPIC -1 TRIGONOMETRIC RATIOS : COMPLEMENTARY ANGLES & VALUE (SHORT ANSWER TYPE QUESTION)|8 Videos
  • CONSTRUCTIONS

    OSWAAL PUBLICATION|Exercise TEXTBOOK CORNER (EXERCISE 6.2) |1 Videos
  • KARNATAKA SECONDARY EDUCATION EXAMINATION BOARD (MODEL QUESTION PAPER)

    OSWAAL PUBLICATION|Exercise QUESTION|42 Videos

Similar Questions

Explore conceptually related problems

If the curves y^(2) = 16x and 9x^(2)+by^(2) =16 cut each other at right angles, then the value of b is

In Delta ABC right angled at B if tan A = (1 ) /(sqrt 3 ) then find the value of : (i) sin A cos C + cos A sinC (ii) Cos A cos C - sin A sinC

In a triangle PQR with right angle at Q , the value of angle P is x, PQ = 7cm and QR = 24 cm , then find sin x and cos x

In DeltaABC if A+B= 90^(@) ,then find the value of cos C.

In Delta ABC right-angled at B, AB = 7 cm and AC - BC = 1 cm , Find the values of sin C and cos C.

In a DeltaABC , if a+b=3c , then the value of cot.(A)/(2)cot.(B)/(2) is

In Delta ABC , right - angled at B, AB = 24 cm, BC = 7cm . Determine : (i) sin A, cos A (ii) sin C, cos C

In Delta ABC , right angle is at B,AB = 5cm and angle ACB =30^(@) Determine the lengths of the sides BC and AC.

In a right-angled DeltaABC right-angled at C, P and Q are the midpoints of BC and AC. Prove that AP^(2)+BQ^(2)=5PQ^(2) .

The triangle A B C is right angled at C, then tan A+tan B=