Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.
Sagot :
For sin : First and second are positive Third and Fouth are negative
For cos : first and Fourth are positive, 270°-360°
For cos : first and Fourth are positive, 270°-360°
Answer:
When Ф lies in quadrant IV the value of cos Ф lies in [0, 1].
Step-by-step explanation:
Given the angle Ф lies in quadrant IV. we have to find the value of cos Ф
As we know, cos Ф is positive only in first and fourth quadrant i.e when Ф lies in 0<Ф<90 and 270<Ф<360.
Hence, cos Ф is positive when Ф lies in 1st and 4th quadrant.
& cos Ф is negative when Ф lies in 2nd and 3rd quadrant.
As, cosФ range from [-1,1]
but in 4th quadrant [0,1]
Hence, when Ф lies in quadrant IV the value of cos Ф lies in [0, 1].
Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.
