What is RSI and How it is usefull in trading??

The **Relative Strength Index (RSI)** is a momentum oscillator that measures the speed and change of price movements, ranging from 0 to 100. It helps traders identify overbought or oversold conditions:

- **RSI above 70**: Overbought, potential price reversal or pullback.
- **RSI below 30**: Oversold, potential price rebound or reversal.

### Key Uses in Trading:
1. **Overbought/Oversold Conditions**: Buy when RSI is below 30, and sell when above 70.
2. **Divergence**:
- **Bullish Divergence**: Price makes new lows, but RSI makes higher lows (buy signal).
- **Bearish Divergence**: Price makes new highs, but RSI makes lower highs (sell signal).
3. **Trend Confirmation**: RSI above 50 suggests a bullish trend, below 50 indicates a bearish trend.
4. **Entry/Exit Signals**: RSI crossing above 30 (from oversold) can signal a buying opportunity, while crossing below 70 (from overbought) can signal a selling opportunity.

### Best Used With:
- Other indicators (e.g., moving averages, support/resistance) to confirm signals.

RSI helps traders spot potential reversals, confirm trends, and make informed entry/exit decisions.