if-cos-4-sin-4-2-5cos-then-find-the-value-of- Tinku Tara June 4, 2023 Trigonometry 0 Comments FacebookTweetPin Question Number 159787 by abdullah_ff last updated on 21/Nov/21 ifcos4θ−sin4θ=2−5cosθthenfindthevalueofθ Commented by cortano last updated on 21/Nov/21 ⇒cos2θ−sin2θ−2+5cosθ=0⇒cos2θ−1+cos2θ−2+5cosθ=0⇒2cos2θ+5cosθ−3=0⇒(2cosθ−1)(cosθ+3)=0⇒cosθ=12⇒θ=±π3+2nπ Commented by abdullah_ff last updated on 23/Nov/21 thankyousir Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: Work-out-and-sketch-P-y-orbitals-Next Next post: If-9y-2-1-y-2-3-then-find-the-value-of-27y-3-1-y-3- Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.