Home
Class 12
MATHS
यदि alpha = 3sin^(-1)(6/11) और beta = 3...

यदि `alpha = 3sin^(-1)(6/11)` और `beta = 3 cos^(-1)(4/9)` , जहाँ प्रतिलोम त्रिकोणमितीय फलन केवल मुख्य मान ही लेते हैं, तब सही कथन है (हैं) : (i) `cos beta gt 0` (ii) `sin beta lt 0`
(iii) `cos (alpha + beta) gt 0` (iv) `cos alpha lt 0`

A

`cos beta gt 0`

B

`sin beta lt 0`

C

`cos (alpha + beta) gt 0`

D

`cos alpha lt 0`

लिखित उत्तर

Verified by Experts

The correct Answer is:
B, C, D
Promotional Banner

टॉपर्स ने हल किए ये सवाल

  • INVERSE TRIGNOMETRIC FUNCTIONS

    BANSAL HINDI|Exercise EXERCISE-3 (SECTION -B) (JEE-MAIN PREVIOUS YEAR.S QUESTIONS)|3 Videos

  • INVERSE TRIGNOMETRIC FUNCTIONS

    BANSAL HINDI|Exercise EXERCISE-4 (SECTION-A)(CBSE PREVIOUS YEAR.S QUESTIONS)|19 Videos

  • INVERSE TRIGNOMETRIC FUNCTIONS

    BANSAL HINDI|Exercise EXERCISE-2|17 Videos

  • INDEFENITE & DEFINITE INTEGRATION

    BANSAL HINDI|Exercise EXERCISE -5 ( Rank Booster) |23 Videos

  • METHOD OF DIFFERENTIATION

    BANSAL HINDI|Exercise Exercise-5(Rank booster)|10 Videos