Предмет: Алгебра, автор: himikbiolog

докажите, что sin 45 = cos 15 + cos 105

Ответы

Автор ответа: Kwestin

sin45 = cos 15 + cos(90+15)
sin 45 = cos 15 + sin 15
sin 45 = cos(45-30) + sin 15
sin 45 = sin30 + sin 15
sin 45 = sin 45
если ней поймешь, почему скобки раскрываются именно так, то я просто использовала формулы приведения

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II Read the text ; True or False?

Budgeting is so important.

Budgeting is one of the most important financial habits you can adopt. But if you’ve never lived on a budget, or haven’t experienced the all the benefits that budgeting has to offer, it’s easy to wonder why it’s such a prominent aspect of personal finance. So, why is budgeting important?

In short, budgeting is important because it helps you control your spending, track your expenses, and save more money. Additionally, budgeting can help you make better financial decisions, prepare for emergencies, get out of debt, and stay focused on your long-term financial goals.

Put simply, living on a budget is a fundamental component of proper financial management.

In fact, for the rest of this post, I am going to take a much deeper dive into the importance of budgeting, and why it is such a vital part of your financial well-being.

Budgeting Helps You Control Your Spending

Let’s be honest, when you operate your finances without a budget, you don’t really have anything holding you back from spending beyond your means. Sure, you might have a general idea about how much money you can spend each month, but without hard, accurate numbers, it’s easy to lose control of your spending habits. In other words, budgeting is important if you want to keep a close eye on your daily spending habits, understand the impact of seemingly small expenses, and take control of your spending.

Budgeting Keeps You On Track For Your Financial Goals Along the same lines of controlling your spending, budgeting is important because it keeps you on track when you are trying to achieve your financial goals. Let’s be honest, setting goals is pretty easy. Anybody can do it. You just think of something you want to achieve, and then set a defined timeline to achieve it. But here’s the thing, setting goals and actually achieving your goals are two very different things. In order to achieve a goal, you need to stick to a plan, and stay focused on a clearly defined process; and that’s where having a budget is so important. Through a budget you can reverse engineer your goals, and develop a clearly defined process to achieve them. In essence, when you create a budget, you are setting boundaries on your financial behavior so that you can stay on track and achieve every goal you set for your life. Additionally, whenever you sit down to log your expenses into your budget, you are essentially re-committing to your goals. And I can tell you from personal experience that the more often you commune with your goals, and assess your progress, the more likely you are to achieve them.

Budgeting Keeps You Organized Disorganization is another one of those words that doesn’t mix well with personal finance. And the longer you live without a budget, the easier it becomes for your financial life to get messy. Between all your monthly bills, debt payments, and all your other expenses, things can just slip through the cracks. Before you know it, you are struggling to get by, and stressed about how you are going to make things work.

To pass along a piece of advice my dad always gives me, “it’s easier to keep clean than to make clean.” In other words, it’s easier to live on a budget and keep your financial life organized, than it is to try to get your finances in order after you have allowed them to get disorganized.

Budgeting Helps You Save Money In a roundabout way, I have already talked about this, but one of the more obvious benefits of budgeting is that it helps you save money. Now, I realize that, for many people out there, saving money isn’t that difficult. You see, when I began living on a budget, I was able to eliminate waste, which increased the amount I was able to save. On top of that, my budget started holding me accountable for all the financial decisions I was making, which, in turn, kept me from spending it all in epic fashion. In other words, instead of just saving by the seat of my pants, and then spending every dime of it, my budget increased my savings, and made me want to let it sit in my bank account.

1 Budgeting isn’t one of the most important financial habits.

2 Budgeting can help you make better financial decision.

3 Budgeting keeps you on track when you are trying to achieve your financial aims.

4 Setting goals are pretty easy.

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