If $90^{\circ}<\alpha<180^{\circ}<\beta<360^{\… | ClassNotes

ClassNotes

Human-reviewed study resources for board exams, entry tests, and structured practice across notes, MCQs, flashcards, and past papers.

Support: [email protected]

Business: [email protected]

North America: +1 (512) 666-1423

Asia / MENA: +92 340 9170227

We typically reply within 3 business days.

Explore

Classes
Posts
MCQs
Flashcards
Search

Company

About
Contact
Tutors
Editorial Standards

Policies

Privacy Policy
Terms of Use
Cookie Policy
Refund Policy
Shipping Policy

© 2026 ClassNotes Inc. All rights reserved.

API Status: checking

Allen, Texas and Lahore, Pakistan. Public support pages are available for privacy, terms, cookies, refunds, shipping, and editorial standards.

Command Palette

Search for a command to run...

Shop
Tutors

If $90^{\circ}<\alpha<180^{\circ}<\beta<360^{\… | ClassNotes

E

Editor

Sep 18, 2022

If $90^{\circ}<\alpha<180^{\circ}<\beta<360^{\circ}$, then which of the following cannot be true?

Difficulty: Easy

A:

\sin\alpha=\cos\beta

B:

\sin\alpha=\sin\beta

C:

\tan\alpha=\sin\beta

D:

\sec\alpha=\csc\beta

ID: 63273dbaca83163ac3a131e7