hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    If √2 sin (5x -5)° =tan 45°, then the value of (in degrees) is:
    Question

    If √2 sin (5x -5)° =tan 45°, then the value of (in degrees) is:

    A.

    14

    B.

    16

    C.

    10

    D.

    12

    Correct option is C

    Given:

    √2 sin (5x -5)° =tan 45°

    Formula Used:

    tan45=1sin45=12\tan 45^\circ = 1\\\sin 45^\circ = \frac{1}{\sqrt{2}} 

    Solution:

    √2 sin (5x -5)° =tan 45°

    ​√2 sin (5x -5)° =1

    sin (5x -5)° =1/​√2

    ​sin (5x -5)° = sin⁡45

    5x =50°\degree​​

    So, value of x=10°\degree​​

    Free Tests

    Free
    Must Attempt

    CBT-1 Full Mock Test 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    CBT-1 General Awareness Section Test 1

    languageIcon English
    • pdpQsnIcon40 Questions
    • pdpsheetsIcon30 Marks
    • timerIcon25 Mins
    languageIcon English
    test-prime-package

    Access ‘RRB NTPC’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    383k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow