36 ka first question plzz solve
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Cos²Theta +Cos Theta≠1 is true
Cos²Theta +Cos Theta=1 is not an Identity
1. cos²@ + [email protected] = 1
taking LHS
= (1-sin²@) + [email protected] = 1 ... cos²@ = 1 - sin²@ - indentity
= 1 - sin²@ + [email protected] = 1
= -sin²@ + [email protected] = 0 ... 1 and 1 get cancel
= [email protected] = [email protected] × [email protected]
= [email protected]/[email protected] = [email protected]
= [email protected] = [email protected]
= adjacent side/opposite side = hypotenuse/opposite side
= LHS ≠ RHS
since [email protected] ≠ [email protected] therefore cos²@ + [email protected] = 1 is not an identity