In trading, the Relative Strength Index (RSI) indicator is often used in combination with other technical indicators and tools to enhance trading decisions. These complementary tools provide additional insights into market trends, confirm or challenge RSI signals, and improve overall accuracy.

One popular indicator that complements the RSI is the Moving Average Convergence Divergence (MACD). The MACD helps identify potential trend reversals and provides confirmation to RSI signals. By comparing the MACD line and the signal line, traders can gain a deeper understanding of the market's momentum and potential entry or exit points.

Another useful tool is the Bollinger Bands. These bands provide a visual representation of price volatility and help identify overbought and oversold conditions. When combined with the RSI, Bollinger Bands can offer a more comprehensive analysis of market conditions, reinforcing or contradicting RSI signals.

Additionally, incorporating support and resistance levels into RSI analysis can strengthen trading decisions. These levels highlight key price levels where buying or selling pressure may be significant. When RSI signals align with support or resistance levels, it adds further confirmation to potential trade entries or exits.

By utilizing these complementary indicators and tools alongside the RSI, traders can gain a more holistic view of market dynamics and improve the accuracy of their trading strategies.