Search for: Find value of sin2 15º + sin2 645º : Find value of sin2 15º + sin2 645º : A12B1C13DNone of these Fill Out the Form for Expert Academic Guidance!l Grade ---Class 1Class 2Class 3Class 4Class 5Class 6Class 7Class 8Class 9Class 10Class 11Class 12 Target Exam JEENEETCBSE +91 Preferred time slot for the call ---9 am10 am11 am12 pm1 pm2 pm3 pm4 pm5 pm6 pm7 pm8pm9 pm10pm Please indicate your interest Live ClassesBooksTest SeriesSelf Learning Language ---EnglishHindiMarathiTamilTeluguMalayalam Are you a Sri Chaitanya student? NoYes Verify OTP Code (required) I agree to the terms and conditions and privacy policy. Solution:sin215∘+sin2645∘ Now, sin645∘=sin7×90+15∘=−cos15∘ So, sin215∘+−cos15∘2=sin215∘+cos215∘=1. Related content 75 Powerful Labour Day Quotes & Wishes to Inspire Hard Work and Dedication Cloze Test in English Grammar: Best Tips, Rules, and Practice Questions World Intellectual Property Day – April 26, 2025 Summer Season Fruits Name List in English for Kids & Students Zodiac Signs – Hindi, Tamil, Telugu, Marathi & Kannada Lazy Opposite Word in English Grammar | Antonyms of Lazy Fat Opposite Word in English Grammar | Antonyms of FAT Difference between Immigration and Emigration With Examples 77 Best Earth Day Quotes for Students and Kids National Civil Service Day 2025
